jquery.js

jquery的多附件上传插件

			} else
				this.value = value;
		});
	},

	html: function( value ) {
		return value === undefined ?
			(this[0] ?
				this[0].innerHTML.replace(/ jQuery\d+="(?:\d+|null)"/g, "") :
				null) :
			this.empty().append( value );
	},

	replaceWith: function( value ) {
		return this.after( value ).remove();
	},

	eq: function( i ) {
		return this.slice( i, +i + 1 );
	},

	slice: function() {
		return this.pushStack( Array.prototype.slice.apply( this, arguments ),
			"slice", Array.prototype.slice.call(arguments).join(",") );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map(this, function(elem, i){
			return callback.call( elem, i, elem );
		}));
	},

	andSelf: function() {
		return this.add( this.prevObject );
	},

	domManip: function( args, table, callback ) {
		if ( this[0] ) {
			var fragment = (this[0].ownerDocument || this[0]).createDocumentFragment(),
				scripts = jQuery.clean( args, (this[0].ownerDocument || this[0]), fragment ),
				first = fragment.firstChild;

			if ( first )
				for ( var i = 0, l = this.length; i < l; i++ )
					callback.call( root(this[i], first), this.length > 1 || i > 0 ?
							fragment.cloneNode(true) : fragment );
		
			if ( scripts )
				jQuery.each( scripts, evalScript );
		}

		return this;
		
		function root( elem, cur ) {
			return table && jQuery.nodeName(elem, "table") && jQuery.nodeName(cur, "tr") ?
				(elem.getElementsByTagName("tbody")[0] ||
				elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
				elem;
		}
	}
};

// Give the init function the jQuery prototype for later instantiation
jQuery.fn.init.prototype = jQuery.fn;

function evalScript( i, elem ) {
	if ( elem.src )
		jQuery.ajax({
			url: elem.src,
			async: false,
			dataType: "script"
		});

	else
		jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );

	if ( elem.parentNode )
		elem.parentNode.removeChild( elem );
}

function now(){
	return +new Date;
}

jQuery.extend = jQuery.fn.extend = function() {
	// copy reference to target object
	var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;
		target = arguments[1] || {};
		// skip the boolean and the target
		i = 2;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !jQuery.isFunction(target) )
		target = {};

	// extend jQuery itself if only one argument is passed
	if ( length == i ) {
		target = this;
		--i;
	}

	for ( ; i < length; i++ )
		// Only deal with non-null/undefined values
		if ( (options = arguments[ i ]) != null )
			// Extend the base object
			for ( var name in options ) {
				var src = target[ name ], copy = options[ name ];

				// Prevent never-ending loop
				if ( target === copy )
					continue;

				// Recurse if we're merging object values
				if ( deep && copy && typeof copy === "object" && !copy.nodeType )
					target[ name ] = jQuery.extend( deep, 
						// Never move original objects, clone them
						src || ( copy.length != null ? [ ] : { } )
					, copy );

				// Don't bring in undefined values
				else if ( copy !== undefined )
					target[ name ] = copy;

			}

	// Return the modified object
	return target;
};

// exclude the following css properties to add px
var	exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
	// cache defaultView
	defaultView = document.defaultView || {},
	toString = Object.prototype.toString;

jQuery.extend({
	noConflict: function( deep ) {
		window.$ = _$;

		if ( deep )
			window.jQuery = _jQuery;

		return jQuery;
	},

	// See test/unit/core.js for details concerning isFunction.
	// Since version 1.3, DOM methods and functions like alert
	// aren't supported. They return false on IE (#2968).
	isFunction: function( obj ) {
		return toString.call(obj) === "[object Function]";
	},

	isArray: function( obj ) {
		return toString.call(obj) === "[object Array]";
	},

	// check if an element is in a (or is an) XML document
	isXMLDoc: function( elem ) {
		return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
			!!elem.ownerDocument && jQuery.isXMLDoc( elem.ownerDocument );
	},

	// Evalulates a script in a global context
	globalEval: function( data ) {
		if ( data && /\S/.test(data) ) {
			// Inspired by code by Andrea Giammarchi
			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
			var head = document.getElementsByTagName("head")[0] || document.documentElement,
				script = document.createElement("script");

			script.type = "text/javascript";
			if ( jQuery.support.scriptEval )
				script.appendChild( document.createTextNode( data ) );
			else
				script.text = data;

			// Use insertBefore instead of appendChild  to circumvent an IE6 bug.
			// This arises when a base node is used (#2709).
			head.insertBefore( script, head.firstChild );
			head.removeChild( script );
		}
	},

	nodeName: function( elem, name ) {
		return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
	},

	// args is for internal usage only
	each: function( object, callback, args ) {
		var name, i = 0, length = object.length;

		if ( args ) {
			if ( length === undefined ) {
				for ( name in object )
					if ( callback.apply( object[ name ], args ) === false )
						break;
			} else
				for ( ; i < length; )
					if ( callback.apply( object[ i++ ], args ) === false )
						break;

		// A special, fast, case for the most common use of each
		} else {
			if ( length === undefined ) {
				for ( name in object )
					if ( callback.call( object[ name ], name, object[ name ] ) === false )
						break;
			} else
				for ( var value = object[0];
					i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
		}

		return object;
	},

	prop: function( elem, value, type, i, name ) {
		// Handle executable functions
		if ( jQuery.isFunction( value ) )
			value = value.call( elem, i );

		// Handle passing in a number to a CSS property
		return typeof value === "number" && type == "curCSS" && !exclude.test( name ) ?
			value + "px" :
			value;
	},

	className: {
		// internal only, use addClass("class")
		add: function( elem, classNames ) {
			jQuery.each((classNames || "").split(/\s+/), function(i, className){
				if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
					elem.className += (elem.className ? " " : "") + className;
			});
		},

		// internal only, use removeClass("class")
		remove: function( elem, classNames ) {
			if (elem.nodeType == 1)
				elem.className = classNames !== undefined ?
					jQuery.grep(elem.className.split(/\s+/), function(className){
						return !jQuery.className.has( classNames, className );
					}).join(" ") :
					"";
		},

		// internal only, use hasClass("class")
		has: function( elem, className ) {
			return elem && jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
		}
	},

	// A method for quickly swapping in/out CSS properties to get correct calculations
	swap: function( elem, options, callback ) {
		var old = {};
		// Remember the old values, and insert the new ones
		for ( var name in options ) {
			old[ name ] = elem.style[ name ];
			elem.style[ name ] = options[ name ];
		}

		callback.call( elem );

		// Revert the old values
		for ( var name in options )
			elem.style[ name ] = old[ name ];
	},

	css: function( elem, name, force, extra ) {
		if ( name == "width" || name == "height" ) {
			var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];

			function getWH() {
				val = name == "width" ? elem.offsetWidth : elem.offsetHeight;

				if ( extra === "border" )
					return;

				jQuery.each( which, function() {
					if ( !extra )
						val -= parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
					if ( extra === "margin" )
						val += parseFloat(jQuery.curCSS( elem, "margin" + this, true)) || 0;
					else
						val -= parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
				});
			}

			if ( elem.offsetWidth !== 0 )
				getWH();
			else
				jQuery.swap( elem, props, getWH );

			return Math.max(0, Math.round(val));
		}

		return jQuery.curCSS( elem, name, force );
	},

	curCSS: function( elem, name, force ) {
		var ret, style = elem.style;

		// We need to handle opacity special in IE
		if ( name == "opacity" && !jQuery.support.opacity ) {
			ret = jQuery.attr( style, "opacity" );

			return ret == "" ?
				"1" :
				ret;
		}

		// Make sure we're using the right name for getting the float value
		if ( name.match( /float/i ) )
			name = styleFloat;

		if ( !force && style && style[ name ] )
			ret = style[ name ];

		else if ( defaultView.getComputedStyle ) {

			// Only "float" is needed here
			if ( name.match( /float/i ) )
				name = "float";

			name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();

			var computedStyle = defaultView.getComputedStyle( elem, null );

			if ( computedStyle )
				ret = computedStyle.getPropertyValue( name );

			// We should always get a number back from opacity
			if ( name == "opacity" && ret == "" )
				ret = "1";

		} else if ( elem.currentStyle ) {
			var camelCase = name.replace(/\-(\w)/g, function(all, letter){
				return letter.toUpperCase();
			});

			ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];

			// From the awesome hack by Dean Edwards
			// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291

			// If we're not dealing with a regular pixel number
			// but a number that has a weird ending, we need to convert it to pixels
			if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
				// Remember the original values
				var left = style.left, rsLeft = elem.runtimeStyle.left;

				// Put in the new values to get a computed value out
				elem.runtimeStyle.left = elem.currentStyle.left;
				style.left = ret || 0;
				ret = style.pixelLeft + "px";

				// Revert the changed values
				style.left = left;
				elem.runtimeStyle.left = rsLeft;
			}
		}

		return ret;
	},

	clean: function( elems, context, fragment ) {
		context = context || document;

		// !context.createElement fails in IE with an error but returns typeof 'object'
		if ( typeof context.createElement === "undefined" )
			context = context.ownerDocument || context[0] && context[0].ownerDocument || document;

		// If a single string is passed in and it's a single tag
		// just do a createElement and skip the rest
		if ( !fragment && elems.length === 1 && typeof elems[0] === "string" ) {
			var match = /^<(\w+)\s*\/?>$/.exec(elems[0]);
			if ( match )
				return [ context.createElement( match[1] ) ];
		}

		var ret = [], scripts = [], div = context.createElement("div");

		jQuery.each(elems, function(i, elem){
			if ( typeof elem === "number" )
				elem += '';

			if ( !elem )
				return;

			// Convert html string into DOM nodes
			if ( typeof elem === "string" ) {
				// Fix "XHTML"-style tags in all browsers
				elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
					return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
						all :
						front + "></" + tag + ">";
				});

				// Trim whitespace, otherwise indexOf won't work as expected
				var tags = elem.replace(/^\s+/, "").substring(0, 10).toLowerCase();

				var wrap =
					// option or optgroup
					!tags.indexOf("<opt") &&
					[ 1, "<select multiple='multiple'>", "</select>" ] ||

					!tags.indexOf("<leg") &&
					[ 1, "<fieldset>", "</fieldset>" ] ||

					tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
					[ 1, "<table>", "</table>" ] ||

					!tags.indexOf("<tr") &&
					[ 2, "<table><tbody>", "</tbody></table>" ] ||

				 	// <thead> matched above
					(!tags.indexOf("<td") || !tags.indexOf("<th")) &&
					[ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||

					!tags.indexOf("<col") &&
					[ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||

					// IE can't serialize <link> and <script> tags normally
					!jQuery.support.htmlSerialize &&
					[ 1, "div<div>", "</div>" ] ||

					[ 0, "", "" ];

				// Go to html and back, then peel off extra wrappers
				div.innerHTML = wrap[1] + elem + wrap[2];

				// Move to the right depth
				while ( wrap[0]-- )
					div = div.lastChild;

				// Remove IE's autoinserted <tbody> from table fragments
				if ( !jQuery.support.tbody ) {

					// String was a <table>, *may* have spurious <tbody>
					var hasBody = /<tbody/i.test(elem),
						tbody = !tags.indexOf("<table") && !hasBody ?
							div.firstChild && div.firstChild.childNodes :

						// String was a bare <thead> or <tfoot>
						wrap[1] == "<table>" && !hasBody ?
							div.childNodes :
							[];

					for ( var j = tbody.length - 1; j >= 0 ; --j )
						if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
							tbody[ j ].parentNode.removeChild( tbody[ j ] );

					}

				// IE completely kills leading whitespace when innerHTML is used
				if ( !jQuery.support.leadingWhitespace && /^\s/.test( elem ) )
					div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
				
				elem = jQuery.makeArray( div.childNodes );
			}

			if ( elem.nodeType )
				ret.push( elem );
			else
				ret = jQuery.merge( ret, elem );

		});

		if ( fragment ) {
			for ( var i = 0; ret[i]; i++ ) {
				if ( jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type.toLowerCase() === "text/javascript") ) {
					scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );
				} else {