navHover = function() {
	var lis = document.getElementById("topnav").getElementsByTagName("LI");
	for (var i=0; i<lis.length; i++) {
		lis[i].onmouseover=function() {
			this.className+=" iehover";
		}
	  	/*lis[i].onmousemove=function() {
	  	  if (this.className.indexOf("iehover")==-1) {
	  		//this.className=this.className.replace(new RegExp(" iehover\\b"), "");
			this.className+=" iehover";
		  }
	  	}*/
		lis[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
		}
	}
}

function navCorect(){
	var lis = document.getElementById("topnav").getElementsByTagName("LI");
	if (lis)
	{
		lis[0].className+=" nb";
	}
}