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			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 = [];

		jQuery.each( a, function(i,arg){
			if ( !arg ) return;

			if ( arg.constructor == Number )
				arg = arg.toString();
			
			 // Convert html string into DOM nodes
			if ( typeof arg == "string" ) {
				// Trim whitespace, otherwise indexOf won't work as expected
				var s = jQuery.trim(arg), div = document.createElement("div"), tb = [];

				var wrap =
					 // option or optgroup
					!s.indexOf("<opt") &&
					[1, "<select>", "</select>"] ||
					
					(!s.indexOf("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot")) &&
					[1, "<table>", "</table>"] ||
					
					!s.indexOf("<tr") &&
					[2, "<table><tbody>", "</tbody></table>"] ||
					
				 	// <thead> matched above
					(!s.indexOf("<td") || !s.indexOf("<th")) &&
					[3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
					
					[0,"",""];

				// Go to html and back, then peel off extra wrappers
				div.innerHTML = wrap[1] + s + wrap[2];
				
				// Move to the right depth
				while ( wrap[0]-- )
					div = div.firstChild;
				
				// Remove IE's autoinserted <tbody> from table fragments
				if ( jQuery.browser.msie ) {
					
					// String was a <table>, *may* have spurious <tbody>
					if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 ) 
						tb = div.firstChild && div.firstChild.childNodes;
						
					// String was a bare <thead> or <tfoot>
					else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
						tb = div.childNodes;

					for ( var n = tb.length-1; n >= 0 ; --n )
						if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
							tb[n].parentNode.removeChild(tb[n]);
					
				}
				
				arg = [];
				for (var i=0, l=div.childNodes.length; i<l; i++)
					arg.push(div.childNodes[i]);
			}

			if ( arg.length === 0 && !jQuery.nodeName(arg, "form") )
				return;
			
			if ( arg[0] == undefined || jQuery.nodeName(arg, "form") )
				r.push( arg );
			else
				r = jQuery.merge( r, arg );

		});

		return r;
	},
	
	attr: function(elem, name, value){
		var fix = jQuery.isXMLDoc(elem) ? {} : {
			"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",
			selected: "selected"
		};
		
		// 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
			// Force it by setting the zoom level
			elem.zoom = 1; 

			// Set the alpha filter to set the opacity
			return elem.filter = elem.filter.replace(/alpha\([^\)]*\)/gi,"") +
				( value == 1 ? "" : "alpha(opacity=" + value * 100 + ")" );

		} else if ( name == "opacity" && jQuery.browser.msie )