发布于 2016-08-24 00:56:00 | 182 次阅读 | 评论: 0 | 来源: 网友投递
jQuery javascript框架
jQuery是一个兼容多浏览器的javascript框架，核心理念是write less,do more(写得更少,做得更多)。jQuery在2006年1月由美国人John Resig在纽约的barcamp发布，吸引了来自世界各地的众多JavaScript高手加入，由Dave Methvin率领团队进行开发。
/* prevent execution of jQuery if included more then once */
if(typeof window.jQuery == "undefined") {
/*
* jQuery 1.0.4 - New Wave Javascript
*
* Copyright (c) 2006 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2006-12-12 15:33:10 -0500 (Tue, 12 Dec 2006) $
* $Rev: 696 $
*/
// Global undefined variable
window.undefined = window.undefined;
var jQuery = function(a,c) {
// Shortcut for document ready
if ( a && typeof a == "function" && jQuery.fn.ready && !a.nodeType && a[0] == undefined ) // Safari reports typeof on DOM NodeLists as a function
return jQuery(document).ready(a);
// Make sure that a selection was provided
a = a || document;
// Watch for when a jQuery object is passed as the selector
if ( a.jquery )
return jQuery( jQuery.merge( a, [] ) );
// Watch for when a jQuery object is passed at the context
if ( c && c.jquery )
return jQuery( c ).find(a);
// If the context is global, return a new object
if ( window == this )
return new jQuery(a,c);
// Handle HTML strings
if ( typeof a == "string" ) {
var m = /^[^<]*(<.+>)[^>]*$/.exec(a);
if ( m ) a = jQuery.clean( [ m[1] ] );
}
// Watch for when an array is passed in
this.set( a.constructor == Array || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType ?
// Assume that it is an array of DOM Elements
jQuery.merge( a, [] ) :
// Find the matching elements and save them for later
jQuery.find( a, c ) );
// See if an extra function was provided
var fn = arguments[ arguments.length - 1 ];
// If so, execute it in context
if ( fn && typeof fn == "function" )
this.each(fn);
return this;
};
// Map over the $ in case of overwrite
if ( typeof $ != "undefined" )
jQuery._$ = $;
// Map the jQuery namespace to the '$' one
var $ = jQuery;
jQuery.fn = jQuery.prototype = {
jquery: "1.0.4",
size: function() {
return this.length;
},
get: function( num ) {
return num == undefined ?
// Return a 'clean' array
jQuery.merge( this, [] ) :
// Return just the object
this[num];
},
set: function( array ) {
// Use a tricky hack to make the jQuery object
// look and feel like an array
this.length = 0;
[].push.apply( this, array );
return this;
},
each: function( fn, args ) {
return jQuery.each( this, fn, args );
},
index: function( obj ) {
var pos = -1;
this.each(function(i){
if ( this == obj ) pos = i;
});
return pos;
},
attr: function( key, value, type ) {
// Check to see if we're setting style values
return key.constructor != String || value != undefined ?
this.each(function(){
// See if we're setting a hash of styles
if ( value == undefined )
// Set all the styles
for ( var prop in key )
jQuery.attr(
type ? this.style : this,
prop, key[prop]
);
// See if we're setting a single key/value style
else
jQuery.attr(
type ? this.style : this,
key, value
);
}) :
// Look for the case where we're accessing a style value
jQuery[ type || "attr" ]( this[0], key );
},
css: function( key, value ) {
return this.attr( key, value, "curCSS" );
},
text: function(e) {
e = e || this;
var t = "";
for ( var j = 0; j < e.length; j++ ) {
var r = e[j].childNodes;
for ( var i = 0; i < r.length; i++ )
if ( r[i].nodeType != 8 )
t += r[i].nodeType != 1 ?
r[i].nodeValue : jQuery.fn.text([ r[i] ]);
}
return t;
},
wrap: function() {
// The elements to wrap the target around
var a = jQuery.clean(arguments);
// Wrap each of the matched elements individually
return this.each(function(){
// Clone the structure that we're using to wrap
var b = a[0].cloneNode(true);
// Insert it before the element to be wrapped
this.parentNode.insertBefore( b, this );
// Find the deepest point in the wrap structure
while ( b.firstChild )
b = b.firstChild;
// Move the matched element to within the wrap structure
b.appendChild( this );
});
},
append: function() {
return this.domManip(arguments, true, 1, function(a){
this.appendChild( a );
});
},
prepend: function() {
return this.domManip(arguments, true, -1, function(a){
this.insertBefore( a, this.firstChild );
});
},
before: function() {
return this.domManip(arguments, false, 1, function(a){
this.parentNode.insertBefore( a, this );
});
},
after: function() {
return this.domManip(arguments, false, -1, function(a){
this.parentNode.insertBefore( a, this.nextSibling );
});
},
end: function() {
if( !(this.stack && this.stack.length) )
return this;
return this.set( this.stack.pop() );
},
find: function(t) {
return this.pushStack( jQuery.map( this, function(a){
return jQuery.find(t,a);
}), arguments );
},
clone: function(deep) {
return this.pushStack( jQuery.map( this, function(a){
return a.cloneNode( deep != undefined ? deep : true );
}), arguments );
},
filter: function(t) {
return this.pushStack(
t.constructor == Array &&
jQuery.map(this,function(a){
for ( var i = 0; i < t.length; i++ )
if ( jQuery.filter(t[i],[a]).r.length )
return a;
return null;
}) ||
t.constructor == Boolean &&
( t ? this.get() : [] ) ||
typeof t == "function" &&
jQuery.grep( this, t ) ||
jQuery.filter(t,this).r, arguments );
},
not: function(t) {
return this.pushStack( typeof t == "string" ?
jQuery.filter(t,this,false).r :
jQuery.grep(this,function(a){ return a != t; }), arguments );
},
add: function(t) {
return this.pushStack( jQuery.merge( this, typeof t == "string" ?
jQuery.find(t) : t.constructor == Array ? t : [t] ), arguments );
},
is: function(expr) {
return expr ? jQuery.filter(expr,this).r.length > 0 : false;
},
domManip: function(args, table, dir, fn){
var clone = this.size() > 1;
var a = jQuery.clean(args);
return this.each(function(){
var obj = this;
if ( table && this.nodeName.toUpperCase() == "TABLE" && a[0].nodeName.toUpperCase() != "THEAD" ) {
var tbody = this.getElementsByTagName("tbody");
if ( !tbody.length ) {
obj = document.createElement("tbody");
this.appendChild( obj );
} else
obj = tbody[0];
}
for ( var i = ( dir < 0 ? a.length - 1 : 0 );
i != ( dir < 0 ? dir : a.length ); i += dir ) {
fn.apply( obj, [ clone ? a[i].cloneNode(true) : a[i] ] );
}
});
},
pushStack: function(a,args) {
var fn = args && args[args.length-1];
var fn2 = args && args[args.length-2];
if ( fn && fn.constructor != Function ) fn = null;
if ( fn2 && fn2.constructor != Function ) fn2 = null;
if ( !fn ) {
if ( !this.stack ) this.stack = [];
this.stack.push( this.get() );
this.set( a );
} else {
var old = this.get();
this.set( a );
if ( fn2 && a.length || !fn2 )
this.each( fn2 || fn ).set( old );
else
this.set( old ).each( fn );
}
return this;
}
};
jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0],
a = 1;
// extend jQuery itself if only one argument is passed
if ( arguments.length == 1 ) {
target = this;
a = 0;
}
var prop;
while (prop = arguments[a++])
// Extend the base object
for ( var i in prop ) target[i] = prop[i];
// Return the modified object
return target;
};
jQuery.extend({
init: function(){
jQuery.initDone = true;
jQuery.each( jQuery.macros.axis, function(i,n){
jQuery.fn[ i ] = function(a) {
var ret = jQuery.map(this,n);
if ( a && typeof a == "string" )
ret = jQuery.filter(a,ret).r;
return this.pushStack( ret, arguments );
};
});
jQuery.each( jQuery.macros.to, function(i,n){
jQuery.fn[ i ] = function(){
var a = arguments;
return this.each(function(){
for ( var j = 0; j < a.length; j++ )
jQuery(a[j])[n]( this );
});
};
});
jQuery.each( jQuery.macros.each, function(i,n){
jQuery.fn[ i ] = function() {
return this.each( n, arguments );
};
});
jQuery.each( jQuery.macros.filter, function(i,n){
jQuery.fn[ n ] = function(num,fn) {
return this.filter( ":" + n + "(" + num + ")", fn );
};
});
jQuery.each( jQuery.macros.attr, function(i,n){
n = n || i;
jQuery.fn[ i ] = function(h) {
return h == undefined ?
this.length ? this[0][n] : null :
this.attr( n, h );
};
});
jQuery.each( jQuery.macros.css, function(i,n){
jQuery.fn[ n ] = function(h) {
return h == undefined ?
( this.length ? jQuery.css( this[0], n ) : null ) :
this.css( n, h );
};
});
},
// args is for internal usage only
each: function( obj, fn, args ) {
if ( obj.length == undefined )
for ( var i in obj )
fn.apply( obj[i], args || [i, obj[i]] );
else
for ( var i = 0; i < obj.length; i++ )
if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
return obj;
},
className: {
add: function(o,c){
if (jQuery.className.has(o,c)) return;
o.className += ( o.className ? " " : "" ) + c;
},
remove: function(o,c){
if( !c ) {
o.className = "";
} else {
var classes = o.className.split(" ");
for(var i=0; i<classes.length; i++) {
if(classes[i] == c) {
classes.splice(i, 1);
break;
}
}
o.className = classes.join(' ');
}
},
has: function(e,a) {
if ( e.className != undefined )
e = e.className;
return new RegExp("(^|\\s)" + a + "(\\s|$)").test(e);
}
},
swap: function(e,o,f) {
for ( var i in o ) {
e.style["old"+i] = e.style[i];
e.style[i] = o[i];
}
f.apply( e, [] );
for ( var i in o )
e.style[i] = e.style["old"+i];
},
css: function(e,p) {
if ( p == "height" || p == "width" ) {
var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
for ( var i=0; i<d.length; i++ ) {
old["padding" + d[i]] = 0;
old["border" + d[i] + "Width"] = 0;
}
jQuery.swap( e, old, function() {
if (jQuery.css(e,"display") != "none") {
oHeight = e.offsetHeight;
oWidth = e.offsetWidth;
} else {
e = jQuery(e.cloneNode(true))
.find(":radio").removeAttr("checked").end()
.css({
visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
}).appendTo(e.parentNode)[0];
var parPos = jQuery.css(e.parentNode,"position");
if ( parPos == "" || parPos == "static" )
e.parentNode.style.position = "relative";
oHeight = e.clientHeight;
oWidth = e.clientWidth;
if ( parPos == "" || parPos == "static" )
e.parentNode.style.position = "static";
e.parentNode.removeChild(e);
}
});
return p == "height" ? oHeight : oWidth;
}
return jQuery.curCSS( e, p );
},
curCSS: function(elem, prop, force) {
var ret;
if (prop == 'opacity' && jQuery.browser.msie)
return jQuery.attr(elem.style, 'opacity');
if (prop == "float" || prop == "cssFloat")
prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";
if (!force && elem.style[prop]) {
ret = elem.style[prop];
} else if (document.defaultView && document.defaultView.getComputedStyle) {
if (prop == "cssFloat" || prop == "styleFloat")
prop = "float";
prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
var cur = document.defaultView.getComputedStyle(elem, null);
if ( cur )
ret = cur.getPropertyValue(prop);
else if ( prop == 'display' )
ret = 'none';
else
jQuery.swap(elem, { display: 'block' }, function() {
var c = document.defaultView.getComputedStyle(this, '');
ret = c && c.getPropertyValue(prop) || '';
});
} else if (elem.currentStyle) {
var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
}
return ret;
},
clean: function(a) {
var r = [];
for ( var i = 0; i < a.length; i++ ) {
var arg = a[i];
if ( typeof arg == "string" ) { // Convert html string into DOM nodes
// Trim whitespace, otherwise indexOf won't work as expected
var s = jQuery.trim(arg), div = document.createElement("div"), wrap = [0,"",""];
if ( !s.indexOf("<opt") ) // option or optgroup
wrap = [1, "<select>", "</select>"];
else if ( !s.indexOf("<thead") || !s.indexOf("<tbody") )
wrap = [1, "<table>", "</table>"];
else if ( !s.indexOf("<tr") )
wrap = [2, "<table>", "</table>"]; // tbody auto-inserted
else if ( !s.indexOf("<td") || !s.indexOf("<th") )
wrap = [3, "<table><tbody><tr>", "</tr></tbody></table>"];
// Go to html and back, then peel off extra wrappers
div.innerHTML = wrap[1] + s + wrap[2];
while ( wrap[0]-- ) div = div.firstChild;
arg = div.childNodes;
}
if ( arg.length != undefined && ( (jQuery.browser.safari && typeof arg == 'function') || !arg.nodeType ) ) // Safari reports typeof on a DOM NodeList to be a function
for ( var n = 0; n < arg.length; n++ ) // Handles Array, jQuery, DOM NodeList collections
r.push(arg[n]);
else
r.push( arg.nodeType ? arg : document.createTextNode(arg.toString()) );
}
return r;
},
expr: {
"": "m[2]== '*'||a.nodeName.toUpperCase()==m[2].toUpperCase()",
"#": "a.getAttribute('id')&&a.getAttribute('id')==m[2]",
":": {
// Position Checks
lt: "i<m[3]-0",
gt: "i>m[3]-0",
nth: "m[3]-0==i",
eq: "m[3]-0==i",
first: "i==0",
last: "i==r.length-1",
even: "i%2==0",
odd: "i%2",
// Child Checks
"nth-child": "jQuery.sibling(a,m[3]).cur",
"first-child": "jQuery.sibling(a,0).cur",
"last-child": "jQuery.sibling(a,0).last",
"only-child": "jQuery.sibling(a).length==1",
// Parent Checks
parent: "a.childNodes.length",
empty: "!a.childNodes.length",
// Text Check
contains: "jQuery.fn.text.apply([a]).indexOf(m[3])>=0",
// Visibility
visible: "a.type!='hidden'&&jQuery.css(a,'display')!='none'&&jQuery.css(a,'visibility')!='hidden'",
hidden: "a.type=='hidden'||jQuery.css(a,'display')=='none'||jQuery.css(a,'visibility')=='hidden'",
// Form attributes
enabled: "!a.disabled",
disabled: "a.disabled",
checked: "a.checked",
selected: "a.selected || jQuery.attr(a, 'selected')",
// Form elements
text: "a.type=='text'",
radio: "a.type=='radio'",
checkbox: "a.type=='checkbox'",
file: "a.type=='file'",
password: "a.type=='password'",
submit: "a.type=='submit'",
image: "a.type=='image'",
reset: "a.type=='reset'",
button: "a.type=='button'",
input: "/input|select|textarea|button/i.test(a.nodeName)"
},
".": "jQuery.className.has(a,m[2])",
"@": {
"=": "z==m[4]",
"!=": "z!=m[4]",
"^=": "z && !z.indexOf(m[4])",
"$=": "z && z.substr(z.length - m[4].length,m[4].length)==m[4]",
"*=": "z && z.indexOf(m[4])>=0",
"": "z"
},
"[": "jQuery.find(m[2],a).length"
},
token: [
"\\.\\.|/\\.\\.", "a.parentNode",
">|/", "jQuery.sibling(a.firstChild)",
"\\+", "jQuery.sibling(a).next",
"~", function(a){
var s = jQuery.sibling(a);
return s.n >= 0 ? s.slice(s.n+1) : [];
}
],
find: function( t, context ) {
// Make sure that the context is a DOM Element
if ( context && context.nodeType == undefined )
context = null;
// Set the correct context (if none is provided)
context = context || document;
if ( t.constructor != String ) return [t];
if ( !t.indexOf("//") ) {
context = context.documentElement;
t = t.substr(2,t.length);
} else if ( !t.indexOf("/") ) {
context = context.documentElement;
t = t.substr(1,t.length);
// FIX Assume the root element is right :(
if ( t.indexOf("/") >= 1 )
t = t.substr(t.indexOf("/"),t.length);
}
var ret = [context];
var done = [];
var last = null;
while ( t.length > 0 && last != t ) {
var r = [];
last = t;
t = jQuery.trim(t).replace( /^\/\//i, "" );
var foundToken = false;
for ( var i = 0; i < jQuery.token.length; i += 2 ) {
if ( foundToken ) continue;
var re = new RegExp("^(" + jQuery.token[i] + ")");
var m = re.exec(t);
if ( m ) {
r = ret = jQuery.map( ret, jQuery.token[i+1] );
t = jQuery.trim( t.replace( re, "" ) );
foundToken = true;
}
}
if ( !foundToken ) {
if ( !t.indexOf(",") || !t.indexOf("|") ) {
if ( ret[0] == context ) ret.shift();
done = jQuery.merge( done, ret );
r = ret = [context];
t = " " + t.substr(1,t.length);
} else {
var re2 = /^([#.]?)([a-z0-9\\*_-]*)/i;
var m = re2.exec(t);
if ( m[1] == "#" ) {
// Ummm, should make this work in all XML docs
var oid = document.getElementById(m[2]);
r = ret = oid ? [oid] : [];
t = t.replace( re2, "" );
} else {
if ( !m[2] || m[1] == "." ) m[2] = "*";
for ( var i = 0; i < ret.length; i++ )
r = jQuery.merge( r,
m[2] == "*" ?
jQuery.getAll(ret[i]) :
ret[i].getElementsByTagName(m[2])
);
}
}
}
if ( t ) {
var val = jQuery.filter(t,r);
ret = r = val.r;
t = jQuery.trim(val.t);
}
}
if ( ret && ret[0] == context ) ret.shift();
done = jQuery.merge( done, ret );
return done;
},
getAll: function(o,r) {
r = r || [];
var s = o.childNodes;
for ( var i = 0; i < s.length; i++ )
if ( s[i].nodeType == 1 ) {
r.push( s[i] );
jQuery.getAll( s[i], r );
}
return r;
},
attr: function(elem, name, value){
var fix = {
"for": "htmlFor",
"class": "className",
"float": jQuery.browser.msie ? "styleFloat" : "cssFloat",
cssFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
innerHTML: "innerHTML",
className: "className",
value: "value",
disabled: "disabled",
checked: "checked",
readonly: "readOnly"
};
// IE actually uses filters for opacity ... elem is actually elem.style
if (name == "opacity" && jQuery.browser.msie && value != undefined) {
// IE has trouble with opacity if it does not have layout
// Would prefer to check element.hasLayout first but don't have access to the element here
elem['zoom'] = 1;
if (value == 1) // Remove filter to avoid more IE weirdness
return elem["filter"] = elem["filter"].replace(/alpha\([^\)]*\)/gi,"");
else
return elem["filter"] = elem["filter"].replace(/alpha\([^\)]*\)/gi,"") + "alpha(opacity=" + value * 100 + ")";
} else if (name == "opacity" && jQuery.browser.msie) {
return elem["filter"] ? parseFloat( elem["filter"].match(/alpha\(opacity=(.*)\)/)[1] )/100 : 1;
}
// Mozilla doesn't play well with opacity 1
if (name == "opacity" && jQuery.browser.mozilla && value == 1) value = 0.9999;
if ( fix[name] ) {
if ( value != undefined ) elem[fix[name]] = value;
return elem[fix[name]];
} else if( value == undefined && jQuery.browser.msie && elem.nodeName && elem.nodeName.toUpperCase() == 'FORM' && (name == 'action' || name == 'method') ) {
return elem.getAttributeNode(name).nodeValue;
} else if ( elem.tagName ) { // IE elem.getAttribute passes even for style
if ( value != undefined ) elem.setAttribute( name, value );
return elem.getAttribute( name );
} else {
name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
if ( value != undefined ) elem[name] = value;
return elem[name];
}
},
// The regular expressions that power the parsing engine
parse: [
// Match: [@value='test'], [@foo]
"\\[ *(@)S *([!*$^=]*) *('?\"?)(.*?)\\4 *\\]",
// Match: [div], [div p]
"(\\[)\s*(.*?)\s*\\]",
// Match: :contains('foo')
"(:)S\\(\"?'?([^\\)]*?)\"?'?\\)",
// Match: :even, :last-chlid
"([:.#]*)S"
],
filter: function(t,r,not) {
// Figure out if we're doing regular, or inverse, filtering
var g = not !== false ? jQuery.grep :
function(a,f) {return jQuery.grep(a,f,true);};
while ( t && /^[a-z[({<*:.#]/i.test(t) ) {
var p = jQuery.parse;
for ( var i = 0; i < p.length; i++ ) {
// Look for, and replace, string-like sequences
// and finally build a regexp out of it
var re = new RegExp(
"^" + p[i].replace("S", "([a-z*_-][a-z0-9_-]*)"), "i" );
var m = re.exec( t );
if ( m ) {
// Re-organize the first match
if ( !i )
m = ["",m[1], m[3], m[2], m[5]];
// Remove what we just matched
t = t.replace( re, "" );
break;
}
}
// :not() is a special case that can be optimized by
// keeping it out of the expression list
if ( m[1] == ":" && m[2] == "not" )
r = jQuery.filter(m[3],r,false).r;
// Otherwise, find the expression to execute
else {
var f = jQuery.expr[m[1]];
if ( f.constructor != String )
f = jQuery.expr[m[1]][m[2]];
// Build a custom macro to enclose it
eval("f = function(a,i){" +
( m[1] == "@" ? "z=jQuery.attr(a,m[3]);" : "" ) +
"return " + f + "}");
// Execute it against the current filter
r = g( r, f );
}
}
// Return an array of filtered elements (r)
// and the modified expression string (t)
return { r: r, t: t };
},
trim: function(t){
return t.replace(/^\s+|\s+$/g, "");
},
parents: function( elem ){
var matched = [];
var cur = elem.parentNode;
while ( cur && cur != document ) {
matched.push( cur );
cur = cur.parentNode;
}
return matched;
},
sibling: function(elem, pos, not) {
var elems = [];
if(elem) {
var siblings = elem.parentNode.childNodes;
for ( var i = 0; i < siblings.length; i++ ) {
if ( not === true && siblings[i] == elem ) continue;
if ( siblings[i].nodeType == 1 )
elems.push( siblings[i] );
if ( siblings[i] == elem )
elems.n = elems.length - 1;
}
}
return jQuery.extend( elems, {
last: elems.n == elems.length - 1,
cur: pos == "even" && elems.n % 2 == 0 || pos == "odd" && elems.n % 2 || elems[pos] == elem,
prev: elems[elems.n - 1],
next: elems[elems.n + 1]
});
},
merge: function(first, second) {
var result = [];
// Move b over to the new array (this helps to avoid
// StaticNodeList instances)
for ( var k = 0; k < first.length; k++ )
result[k] = first[k];
// Now check for duplicates between a and b and only
// add the unique items
for ( var i = 0; i < second.length; i++ ) {
var noCollision = true;
// The collision-checking process
for ( var j = 0; j < first.length; j++ )
if ( second[i] == first[j] )
noCollision = false;
// If the item is unique, add it
if ( noCollision )
result.push( second[i] );
}
return result;
},
grep: function(elems, fn, inv) {
// If a string is passed in for the function, make a function
// for it (a handy shortcut)
if ( typeof fn == "string" )
fn = new Function("a","i","return " + fn);
var result = [];
// Go through the array, only saving the items
// that pass the validator function
for ( var i = 0; i < elems.length; i++ )
if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
result.push( elems[i] );
return result;
},
map: function(elems, fn) {
// If a string is passed in for the function, make a function
// for it (a handy shortcut)
if ( typeof fn == "string" )
fn = new Function("a","return " + fn);
var result = [];
// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0; i < elems.length; i++ ) {
var val = fn(elems[i],i);
if ( val !== null && val != undefined ) {
if ( val.constructor != Array ) val = [val];
result = jQuery.merge( result, val );
}
}
return result;
},
/*
* A number of helper functions used for managing events.
* Many of the ideas behind this code orignated from Dean Edwards' addEvent library.
*/
event: {
// Bind an event to an element
// Original by Dean Edwards
add: function(element, type, handler) {
// For whatever reason, IE has trouble passing the window object
// around, causing it to be cloned in the process
if ( jQuery.browser.msie && element.setInterval != undefined )
element = window;
// Make sure that the function being executed has a unique ID
if ( !handler.guid )
handler.guid = this.guid++;
// Init the element's event structure
if (!element.events)
element.events = {};
// Get the current list of functions bound to this event
var handlers = element.events[type];
// If it hasn't been initialized yet
if (!handlers) {
// Init the event handler queue
handlers = element.events[type] = {};
// Remember an existing handler, if it's already there
if (element["on" + type])
handlers[0] = element["on" + type];
}
// Add the function to the element's handler list
handlers[handler.guid] = handler;
// And bind the global event handler to the element
element["on" + type] = this.handle;
// Remember the function in a global list (for triggering)
if (!this.global[type])
this.global[type] = [];
this.global[type].push( element );
},
guid: 1,
global: {},
// Detach an event or set of events from an element
remove: function(element, type, handler) {
if (element.events)
if (type && element.events[type])
if ( handler )
delete element.events[type][handler.guid];
else
for ( var i in element.events[type] )
delete element.events[type][i];
else
for ( var j in element.events )
this.remove( element, j );
},
trigger: function(type,data,element) {
// Clone the incoming data, if any
data = $.merge([], data || []);
// Handle a global trigger
if ( !element ) {
var g = this.global[type];
if ( g )
for ( var i = 0; i < g.length; i++ )
this.trigger( type, data, g[i] );
// Handle triggering a single element
} else if ( element["on" + type] ) {
// Pass along a fake event
data.unshift( this.fix({ type: type, target: element }) );
// Trigger the event
element["on" + type].apply( element, data );
}
},
handle: function(event) {
if ( typeof jQuery == "undefined" ) return false;
event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
// If no correct event was found, fail
if ( !event ) return false;
var returnValue = true;
var c = this.events[event.type];
var args = [].slice.call( arguments, 1 );
args.unshift( event );
for ( var j in c ) {
if ( c[j].apply( this, args ) === false ) {
event.preventDefault();
event.stopPropagation();
returnValue = false;
}
}
// Clean up added properties in IE to prevent memory leak
if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = null;
return returnValue;
},
fix: function(event) {
// check IE
if(jQuery.browser.msie) {
// fix target property, if available
// check prevents overwriting of fake target coming from trigger
if(event.srcElement)
event.target = event.srcElement;
// calculate pageX/Y
var e = document.documentElement, b = document.body;
event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
// check safari and if target is a textnode
} else if(jQuery.browser.safari && event.target.nodeType == 3) {
// target is readonly, clone the event object
event = jQuery.extend({}, event);
// get parentnode from textnode
event.target = event.target.parentNode;
}
// fix preventDefault and stopPropagation
if (!event.preventDefault)
event.preventDefault = function() {
this.returnValue = false;
};
if (!event.stopPropagation)
event.stopPropagation = function() {
this.cancelBubble = true;
};
return event;
}
}
});
/*
* Wheather the W3C compliant box model is being used.
*
* @property
* @name $.boxModel
* @type Boolean
* @cat Javascript
*/
new function() {
var b = navigator.userAgent.toLowerCase();
// Figure out what browser is being used
jQuery.browser = {
safari: /webkit/.test(b),
opera: /opera/.test(b),
msie: /msie/.test(b) && !/opera/.test(b),
mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
};
// Check to see if the W3C box model is being used
jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
};
jQuery.macros = {
to: {
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after"
},
css: "width,height,top,left,position,float,overflow,color,background".split(","),
filter: [ "eq", "lt", "gt", "contains" ],
attr: {
val: "value",
html: "innerHTML",
id: null,
title: null,
name: null,
href: null,
src: null,
rel: null
},
axis: {
parent: "a.parentNode",
ancestors: jQuery.parents,
parents: jQuery.parents,
next: "jQuery.sibling(a).next",
prev: "jQuery.sibling(a).prev",
siblings: "jQuery.sibling(a, null, true)",
children: "jQuery.sibling(a.firstChild)"
},
each: {
removeAttr: function( key ) {
jQuery.attr( this, key, "" );
this.removeAttribute( key );
},
show: function(){
this.style.display = this.oldblock ? this.oldblock : "";
if ( jQuery.css(this,"display") == "none" )
this.style.display = "block";
},
hide: function(){
this.oldblock = this.oldblock || jQuery.css(this,"display");
if ( this.oldblock == "none" )
this.oldblock = "block";
this.style.display = "none";
},
toggle: function(){
jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ].apply( jQuery(this), arguments );
},
addClass: function(c){
jQuery.className.add(this,c);
},
removeClass: function(c){
jQuery.className.remove(this,c);
},
toggleClass: function( c ){
jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
},
remove: function(a){
if ( !a || jQuery.filter( a, [this] ).r )
this.parentNode.removeChild( this );
},
empty: function(){
while ( this.firstChild )
this.removeChild( this.firstChild );
},
bind: function( type, fn ) {
jQuery.event.add( this, type, fn );
},
unbind: function( type, fn ) {
jQuery.event.remove( this, type, fn );
},
trigger: function( type, data ) {
jQuery.event.trigger( type, data, this );
}
}
};
jQuery.init();
jQuery.fn.extend({
// We're overriding the old toggle function, so
// remember it for later
_toggle: jQuery.fn.toggle,
toggle: function(a,b) {
// If two functions are passed in, we're
// toggling on a click
return a && b && a.constructor == Function && b.constructor == Function ? this.click(function(e){
// Figure out which function to execute
this.last = this.last == a ? b : a;
// Make sure that clicks stop
e.preventDefault();
// and execute the function
return this.last.apply( this, [e] ) || false;
}) :
// Otherwise, execute the old toggle function
this._toggle.apply( this, arguments );
},
hover: function(f,g) {
// A private function for haandling mouse 'hovering'
function handleHover(e) {
// Check if mouse(over|out) are still within the same parent element
var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
// Traverse up the tree
while ( p && p != this ) try { p = p.parentNode } catch(e) { p = this; };
// If we actually just moused on to a sub-element, ignore it
if ( p == this ) return false;
// Execute the right function
return (e.type == "mouseover" ? f : g).apply(this, [e]);
}
// Bind the function to the two event listeners
return this.mouseover(handleHover).mouseout(handleHover);
},
ready: function(f) {
// If the DOM is already ready
if ( jQuery.isReady )
// Execute the function immediately
f.apply( document );
// Otherwise, remember the function for later
else {
// Add the function to the wait list
jQuery.readyList.push( f );
}
return this;
}
});
jQuery.extend({
/*
* All the code that makes DOM Ready work nicely.
*/
isReady: false,
readyList: [],
// Handle when the DOM is ready
ready: function() {
// Make sure that the DOM is not already loaded
if ( !jQuery.isReady ) {
// Remember that the DOM is ready
jQuery.isReady = true;
// If there are functions bound, to execute
if ( jQuery.readyList ) {
// Execute all of them
for ( var i = 0; i < jQuery.readyList.length; i++ )
jQuery.readyList[i].apply( document );
// Reset the list of functions
jQuery.readyList = null;
}
// Remove event lisenter to avoid memory leak
if ( jQuery.browser.mozilla || jQuery.browser.opera )
document.removeEventListener( "DOMContentLoaded", jQuery.ready, false );
}
}
});
new function(){
var e = ("blur,focus,load,resize,scroll,unload,click,dblclick," +
"mousedown,mouseup,mousemove,mouseover,mouseout,change,reset,select," +
"submit,keydown,keypress,keyup,error").split(",");
// Go through all the event names, but make sure that
// it is enclosed properly
for ( var i = 0; i < e.length; i++ ) new function(){
var o = e[i];
// Handle event binding
jQuery.fn[o] = function(f){
return f ? this.bind(o, f) : this.trigger(o);
};
// Handle event unbinding
jQuery.fn["un"+o] = function(f){ return this.unbind(o, f); };
// Finally, handle events that only fire once
jQuery.fn["one"+o] = function(f){
// save cloned reference to this
var element = jQuery(this);
var handler = function() {
// unbind itself when executed
element.unbind(o, handler);
element = null;
// apply original handler with the same arguments
return f.apply(this, arguments);
};
return this.bind(o, handler);
};
};
// If Mozilla is used
if ( jQuery.browser.mozilla || jQuery.browser.opera ) {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
// If IE is used, use the excellent hack by Matthias Miller
// http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited
} else if ( jQuery.browser.msie ) {
// Only works if you document.write() it
document.write("<scr" + "ipt id=__ie_init defer=true " +
"src=//:><\/script>");
// Use the defer script hack
var script = document.getElementById("__ie_init");
if (script) // script does not exist if jQuery is loaded dynamically
script.onreadystatechange = function() {
if ( this.readyState != "complete" ) return;
this.parentNode.removeChild( this );
jQuery.ready();
};
// Clear from memory
script = null;
// If Safari is used
} else if ( jQuery.browser.safari ) {
// Continually check to see if the document.readyState is valid
jQuery.safariTimer = setInterval(function(){
// loaded and complete are both valid states
if ( document.readyState == "loaded" ||
document.readyState == "complete" ) {
// If either one are found, remove the timer
clearInterval( jQuery.safariTimer );
jQuery.safariTimer = null;
// and execute any waiting functions
jQuery.ready();
}
}, 10);
}
// A fallback to window.onload, that will always work
jQuery.event.add( window, "load", jQuery.ready );
};
// Clean up after IE to avoid memory leaks
if (jQuery.browser.msie) jQuery(window).unload(function() {
var event = jQuery.event, global = event.global;
for (var type in global) {
var els = global[type], i = els.length;
if (i>0) do if (type != 'unload') event.remove(els[i-1], type); while (--i);
}
});
jQuery.fn.extend({
// overwrite the old show method
_show: jQuery.fn.show,
show: function(speed,callback){
return speed ? this.animate({
height: "show", width: "show", opacity: "show"
}, speed, callback) : this._show();
},
// Overwrite the old hide method
_hide: jQuery.fn.hide,
hide: function(speed,callback){
return speed ? this.animate({
height: "hide", width: "hide", opacity: "hide"
}, speed, callback) : this._hide();
},
slideDown: function(speed,callback){
return this.animate({height: "show"}, speed, callback);
},
slideUp: function(speed,callback){
return this.animate({height: "hide"}, speed, callback);
},
slideToggle: function(speed,callback){
return this.each(function(){
var state = jQuery(this).is(":hidden") ? "show" : "hide";
jQuery(this).animate({height: state}, speed, callback);
});
},
fadeIn: function(speed,callback){
return this.animate({opacity: "show"}, speed, callback);
},
fadeOut: function(speed,callback){
return this.animate({opacity: "hide"}, speed, callback);
},
fadeTo: function(speed,to,callback){
return this.animate({opacity: to}, speed, callback);
},
animate: function(prop,speed,callback) {
return this.queue(function(){
this.curAnim = jQuery.extend({}, prop);
for ( var p in prop ) {
var e = new jQuery.fx( this, jQuery.speed(speed,callback), p );
if ( prop[p].constructor == Number )
e.custom( e.cur(), prop[p] );
else
e[ prop[p] ]( prop );
}
});
},
queue: function(type,fn){
if ( !fn ) {
fn = type;
type = "fx";
}
return this.each(function(){
if ( !this.queue )
this.queue = {};
if ( !this.queue[type] )
this.queue[type] = [];
this.queue[type].push( fn );
if ( this.queue[type].length == 1 )
fn.apply(this);
});
}
});
jQuery.extend({
speed: function(s,o) {
o = o || {};
if ( o.constructor == Function )
o = { complete: o };
var ss = { slow: 600, fast: 200 };
o.duration = (s && s.constructor == Number ? s : ss[s]) || 400;
// Queueing
o.oldComplete = o.complete;
o.complete = function(){
jQuery.dequeue(this, "fx");
if ( o.oldComplete && o.oldComplete.constructor == Function )
o.oldComplete.apply( this );
};
return o;
},
queue: {},
dequeue: function(elem,type){
type = type || "fx";
if ( elem.queue && elem.queue[type] ) {
// Remove self
elem.queue[type].shift();
// Get next function
var f = elem.queue[type][0];
if ( f ) f.apply( elem );
}
},
/*
* I originally wrote fx() as a clone of moo.fx and in the process
* of making it small in size the code became illegible to sane
* people. You've been warned.
*/
fx: function( elem, options, prop ){
var z = this;
// The users options
z.o = {
duration: options.duration || 400,
complete: options.complete,
step: options.step
};
// The element
z.el = elem;
// The styles
var y = z.el.style;
// Store display property
var oldDisplay = jQuery.css(z.el, 'display');
// Set display property to block for animation
y.display = "block";
// Make sure that nothing sneaks out
y.overflow = "hidden";
// Simple function for setting a style value
z.a = function(){
if ( options.step )
options.step.apply( elem, [ z.now ] );
if ( prop == "opacity" )
jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
else if ( parseInt(z.now) ) // My hate for IE will never die
y[prop] = parseInt(z.now) + "px";
};
// Figure out the maximum number to run to
z.max = function(){
return parseFloat( jQuery.css(z.el,prop) );
};
// Get the current size
z.cur = function(){
var r = parseFloat( jQuery.curCSS(z.el, prop) );
return r && r > -10000 ? r : z.max();
};
// Start an animation from one number to another
z.custom = function(from,to){
z.startTime = (new Date()).getTime();
z.now = from;
z.a();
z.timer = setInterval(function(){
z.step(from, to);
}, 13);
};
// Simple 'show' function
z.show = function(){
if ( !z.el.orig ) z.el.orig = {};
// Remember where we started, so that we can go back to it later
z.el.orig[prop] = this.cur();
z.o.show = true;
// Begin the animation
z.custom(0, z.el.orig[prop]);
// Stupid IE, look what you made me do
if ( prop != "opacity" )
y[prop] = "1px";
};
// Simple 'hide' function
z.hide = function(){
if ( !z.el.orig ) z.el.orig = {};
// Remember where we started, so that we can go back to it later
z.el.orig[prop] = this.cur();
z.o.hide = true;
// Begin the animation
z.custom(z.el.orig[prop], 0);
};
//Simple 'toggle' function
z.toggle = function() {
if ( !z.el.orig ) z.el.orig = {};
// Remember where we started, so that we can go back to it later
z.el.orig[prop] = this.cur();
if(oldDisplay == 'none') {
z.o.show = true;
// Stupid IE, look what you made me do
if ( prop != "opacity" )
y[prop] = "1px";
// Begin the animation
z.custom(0, z.el.orig[prop]);
} else {
z.o.hide = true;
// Begin the animation
z.custom(z.el.orig[prop], 0);
}
};
// Each step of an animation
z.step = function(firstNum, lastNum){
var t = (new Date()).getTime();
if (t > z.o.duration + z.startTime) {
// Stop the timer
clearInterval(z.timer);
z.timer = null;
z.now = lastNum;
z.a();
z.el.curAnim[ prop ] = true;
var done = true;
for ( var i in z.el.curAnim )
if ( z.el.curAnim[i] !== true )
done = false;
if ( done ) {
// Reset the overflow
y.overflow = '';
// Reset the display
y.display = oldDisplay;
if (jQuery.css(z.el, 'display') == 'none')
y.display = 'block';
// Hide the element if the "hide" operation was done
if ( z.o.hide )
y.display = 'none';
// Reset the properties, if the item has been hidden or shown
if ( z.o.hide || z.o.show )
for ( var p in z.el.curAnim )
if (p == "opacity")
jQuery.attr(y, p, z.el.orig[p]);
else
y[p] = '';
}
// If a callback was provided, execute it
if( done && z.o.complete && z.o.complete.constructor == Function )
// Execute the complete function
z.o.complete.apply( z.el );
} else {
// Figure out where in the animation we are and set the number
var p = (t - this.startTime) / z.o.duration;
z.now = ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;
// Perform the next step of the animation
z.a();
}
};
}
});
jQuery.fn.extend({
loadIfModified: function( url, params, callback ) {
this.load( url, params, callback, 1 );
},
load: function( url, params, callback, ifModified ) {
if ( url.constructor == Function )
return this.bind("load", url);
callback = callback || function(){};
// Default to a GET request
var type = "GET";
// If the second parameter was provided
if ( params ) {
// If it's a function
if ( params.constructor == Function ) {
// We assume that it's the callback
callback = params;
params = null;
// Otherwise, build a param string
} else {
params = jQuery.param( params );
type = "POST";
}
}
var self = this;
// Request the remote document
jQuery.ajax({
url: url,
type: type,
data: params,
ifModified: ifModified,
complete: function(res, status){
if ( status == "success" || !ifModified && status == "notmodified" ) {
// Inject the HTML into all the matched elements
self.html(res.responseText)
// Execute all the scripts inside of the newly-injected HTML
.evalScripts()
// Execute callback
.each( callback, [res.responseText, status, res] );
} else
callback.apply( self, [res.responseText, status, res] );
}
});
return this;
},
serialize: function() {
return jQuery.param( this );
},
evalScripts: function() {
return this.find('script').each(function(){
if ( this.src )
// for some weird reason, it doesn't work if the callback is ommited
jQuery.getScript( this.src );
else {
jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
}
}).end();
}
});
// If IE is used, create a wrapper for the XMLHttpRequest object
if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
XMLHttpRequest = function(){
return new ActiveXObject("Microsoft.XMLHTTP");
};
// Attach a bunch of functions for handling common AJAX events
new function(){
var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".split(",");
for ( var i = 0; i < e.length; i++ ) new function(){
var o = e[i];
jQuery.fn[o] = function(f){
return this.bind(o, f);
};
};
};
jQuery.extend({
get: function( url, data, callback, type, ifModified ) {
// shift arguments if data argument was ommited
if ( data && data.constructor == Function ) {
callback = data;
data = null;
}
// Delegate
jQuery.ajax({
url: url,
data: data,
success: callback,
dataType: type,
ifModified: ifModified
});
},
getIfModified: function( url, data, callback, type ) {
jQuery.get(url, data, callback, type, 1);
},
getScript: function( url, callback ) {
if(callback)
jQuery.get(url, null, callback, "script");
else {
jQuery.get(url, null, null, "script");
}
},
getJSON: function( url, data, callback ) {
jQuery.get(url, data, callback, "json");
},
post: function( url, data, callback, type ) {
// Delegate
jQuery.ajax({
type: "POST",
url: url,
data: data,
success: callback,
dataType: type
});
},
// timeout (ms)
timeout: 0,
ajaxTimeout: function(timeout) {
jQuery.timeout = timeout;
},
// Last-Modified header cache for next request
lastModified: {},
ajax: function( s ) {
// TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
s = jQuery.extend({
global: true,
ifModified: false,
type: "GET",
timeout: jQuery.timeout,
complete: null,
success: null,
error: null,
dataType: null,
url: null,
data: null,
contentType: "application/x-www-form-urlencoded",
processData: true,
async: true,
beforeSend: null
}, s);
// if data available
if ( s.data ) {
// convert data if not already a string
if (s.processData && typeof s.data != 'string')
s.data = jQuery.param(s.data);
// append data to url for get requests
if( s.type.toLowerCase() == "get" )
// "?" + data or "&" + data (in case there are already params)
s.url += ((s.url.indexOf("?") > -1) ? "&" : "?") + s.data;
}
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );
var requestDone = false;
// Create the request object
var xml = new XMLHttpRequest();
// Open the socket
xml.open(s.type, s.url, s.async);
// Set the correct header, if data is being sent
if ( s.data )
xml.setRequestHeader("Content-Type", s.contentType);
// Set the If-Modified-Since header, if ifModified mode.
if ( s.ifModified )
xml.setRequestHeader("If-Modified-Since",
jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );
// Set header so the called script knows that it's an XMLHttpRequest
xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");
// Make sure the browser sends the right content length
if ( xml.overrideMimeType )
xml.setRequestHeader("Connection", "close");
// Allow custom headers/mimetypes
if( s.beforeSend )
s.beforeSend(xml);
if (s.global)
jQuery.event.trigger("ajaxSend", [xml, s]);
// Wait for a response to come back
var onreadystatechange = function(isTimeout){
// The transfer is complete and the data is available, or the request timed out
if ( xml && (xml.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true;
var status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ?
s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" ) {
// Cache Last-Modified header, if ifModified mode.
var modRes;
try {
modRes = xml.getResponseHeader("Last-Modified");
} catch(e) {} // swallow exception thrown by FF if header is not available
if ( s.ifModified && modRes )
jQuery.lastModified[s.url] = modRes;
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.httpData( xml, s.dataType );
// If a local callback was specified, fire it and pass it the data
if ( s.success )
s.success( data, status );
// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
// Otherwise, the request was not successful
} else {
// If a local callback was specified, fire it
if ( s.error ) s.error( xml, status );
// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxError", [xml, s] );
}
// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete", [xml, s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// Process result
if ( s.complete ) s.complete(xml, status);
// Stop memory leaks
xml.onreadystatechange = function(){};
xml = null;
}
};
xml.onreadystatechange = onreadystatechange;
// Timeout checker
if(s.timeout > 0)
setTimeout(function(){
// Check to see if the request is still happening
if (xml) {
// Cancel the request
xml.abort();
if ( !requestDone ) onreadystatechange( "timeout" );
// Clear from memory
xml = null;
}
}, s.timeout);
// Send the data
xml.send(s.data);
// return XMLHttpRequest to allow aborting the request etc.
return xml;
},
// Counter for holding the number of active queries
active: 0,
// Determines if an XMLHttpRequest was successful or not
httpSuccess: function(r) {
try {
return !r.status && location.protocol == "file:" ||
( r.status >= 200 && r.status < 300 ) || r.status == 304 ||
jQuery.browser.safari && r.status == undefined;
} catch(e){}
return false;
},
// Determines if an XMLHttpRequest returns NotModified
httpNotModified: function(xml, url) {
try {
var xmlRes = xml.getResponseHeader("Last-Modified");
// Firefox always returns 200. check Last-Modified date
return xml.status == 304 || xmlRes == jQuery.lastModified[url] ||
jQuery.browser.safari && xml.status == undefined;
} catch(e){}
return false;
},
/* Get the data out of an XMLHttpRequest.
* Return parsed XML if content-type header is "xml" and type is "xml" or omitted,
* otherwise return plain text.
* (String) data - The type of data that you're expecting back,
* (e.g. "xml", "html", "script")
*/
httpData: function(r,type) {
var ct = r.getResponseHeader("content-type");
var data = !type && ct && ct.indexOf("xml") >= 0;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script", eval it in global context
if ( type == "script" ) {
jQuery.globalEval( data );
}
// Get the JavaScript object, if JSON is used.
if ( type == "json" ) eval( "data = " + data );
// evaluate scripts within html
if ( type == "html" ) jQuery("<div>").html(data).evalScripts();
return data;
},
// Serialize an array of form elements or a set of
// key/values into a query string
param: function(a) {
var s = [];
// If an array was passed in, assume that it is an array
// of form elements
if ( a.constructor == Array || a.jquery ) {
// Serialize the form elements
for ( var i = 0; i < a.length; i++ )
s.push( a[i].name + "=" + encodeURIComponent( a[i].value ) );
// Otherwise, assume that it's an object of key/value pairs
} else {
// Serialize the key/values
for ( var j in a ) {
// If the value is an array then the key names need to be repeated
if( a[j].constructor == Array ) {
for (var k = 0; k < a[j].length; k++) {
s.push( j + "=" + encodeURIComponent( a[j][k] ) );
}
} else {
s.push( j + "=" + encodeURIComponent( a[j] ) );
}
}
}
// Return the resulting serialization
return s.join("&");
},
// evalulates a script in global context
// not reliable for safari
globalEval: function(data) {
if (window.execScript)
window.execScript( data );
else if(jQuery.browser.safari)
// safari doesn't provide a synchronous global eval
window.setTimeout( data, 0 );
else
eval.call( window, data );
}
});
} // close: if(typeof window.jQuery == "undefined") {