var sfHover = function() {
	var el = document.getElementById('Nav1');
	if(!/\bnav\b/.test(el.className) && el.tagName == 'UL')
		setHover(el);
	var ieNavs = document.getElementsByTagName('ul');
	for(i=0; i<ieNavs.length; i++) {
		var ul = ieNavs[i];
		if(/\bnav\b/.test(ul.className))
			setHover(ul);
	}
}
function setHover(nav) {
	var ieULs = nav.getElementsByTagName('ul');
	if (navigator.appVersion.substr(22,3)!='5.0') {
		for (j=0; j<ieULs.length; j++) {
			var ieMat=document.createElement('iframe');
			if(document.location.protocol == 'https:')
				ieMat.src='/ie6_blank.htm';
			else if(window.opera != 'undefined')
				ieMat.src='';
			else
				ieMat.src='javascript:false';
			ieMat.scrolling='no';
			ieMat.frameBorder='0';
			ieMat.style.width=ieULs[j].offsetWidth+'px';
			ieMat.style.height=ieULs[j].offsetHeight+'px';
			ieMat.style.zIndex='-1';
			ieULs[j].insertBefore(ieMat, ieULs[j].childNodes[0]);
			ieULs[j].style.zIndex='101';
		}
		var ieLIs = nav.getElementsByTagName('li');
		for (var i=0; i<ieLIs.length; i++) if (ieLIs[i]) {
			ieLIs[i].onmouseover=function() {
				if(!/\bsfhover\b/.test(this.className))
					this.className+=' sfhover';
			}
			ieLIs[i].onmouseout=function() {
				if(!this.contains(event.toElement))
					this.className=this.className.replace(' sfhover', '');
			}
			ieLIs[i].onmouseclick=function() {
				if(!this.contains(event.toElement))
					this.className=this.className.replace(' sfhover', '');
			}
		}
	}
}
if(window.attachEvent) window.attachEvent('onload', sfHover);