if (document.all){
  navHover = function() {
  	var lis = document.getElementById("navmenu-h").getElementsByTagName("LI");
  	for (var i=0; i<lis.length; i++) {
  		lis[i].onmouseover=function() {
  			this.className+=" iehover";
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  			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
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  }
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}