// This is for supporting hover 
        
        var currentSheet, doc = window.document;
        
        var activators = {
	        onhover:{on:'onmouseover', off:'onmouseout'},
	        onactive:{on:'onmousedown', off:'onmouseup'}
        }

        function parseStylesheets() {
	        var sheets = doc.styleSheets, l = sheets.length;
	        for(var i=0; i<l; i++) 
		        parseStylesheet(sheets[i]);
        }
        
	    function parseStylesheet(sheet) {
		    var l, rules, imports;
		    if(sheet.imports) {
			    imports = sheet.imports, l = imports.length;
			    for(var i=0; i<l; i++) 
				    parseStylesheet(sheet.imports[i]);
		    }

		    rules = (currentSheet = sheet).rules, l = rules.length;
		    for(var j=0; j<l; j++) parseCSSRule(rules[j]);
	    }

	    function parseCSSRule(rule) {
		    var select = rule.selectorText, style = rule.style.cssText;
		    if(!(/(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i).test(select) || !style) return;
        	
		    var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1');
		    var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo);
		    var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1];
		    var affected = select.replace(/:hover.*$/, '');
		    var elements = getElementsBySelect(affected);

		    currentSheet.addRule(newSelect, style);
		    for(var i=0; i<elements.length; i++)
			    new HoverElement(elements[i], className, activators[pseudo]);
	    }

        function HoverElement(node, className, events) {
	        if(!node.hovers) node.hovers = {};
	        if(node.hovers[className]) return;
	        node.hovers[className] = true;
	        node.attachEvent(events.on,
		        function() { node.className += ' ' + className; });
	        node.attachEvent(events.off,
		        function() { node.className = 
			        node.className.replace(new RegExp('\\s+'+className, 'g'),''); });
        }
        

        function getElementsBySelect(rule) {
	        var parts, nodes = [doc];
	        parts = rule.split(' ');
	        for(var i=0; i<parts.length; i++) {
		        nodes = getSelectedNodes(parts[i], nodes);
	        }	return nodes;
        }
        
	    function getSelectedNodes(select, elements) {
		    var result, node, nodes = [];
		    var classname = (/\.([a-z0-9_-]+)/i).exec(select);
		    var identify = (/\#([a-z0-9_-]+)/i).exec(select);
		    var tagName = (/^[a-z0-9]+/i).exec(select.toUpperCase()) || '*';
		    for(var i=0; i<elements.length; i++) {
			    result = elements[i].getElementsByTagName(tagName);
			    for(var j=0; j<result.length; j++) {
				    node = result[j];
				    if((identify && node.id != identify[1]) || (classname && !(new RegExp('\\b' +
					    classname[1] + '\\b').exec(node.className)))) continue;
				    nodes[nodes.length] = node;
			    }
		    }	return nodes;
	    }