addHoverListHandlers = function() { // enable hover lists for ie
	if (document.all && document.getElementById && navigator.appVersion.indexOf("Mac")==-1
		&& parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) == 6) {
		var navroot = document.getElementById("nav");
		var lis=navroot.getElementsByTagName("LI");		
		if (lis && lis.length > 0) {
	  		for (i=0; i<lis.length; i++) {
	  			lis[i].style.zIndex = lis.length-i;
	  			if (lis[i].children && lis[i].children.length>0) {
	  				for (j=0; j<lis[i].children.length;j++) {
	  					if(lis[i].children[j].tagName=="UL") {
	  						var lislis = lis[i].children[j].getElementsByTagName("LI");
	  						if (lislis && lislis.length>0) {
		  						lis[i].onmouseover=function() {
		  							this.className += " hovering";
							  		toggleSelects("hidden");
		  						}
		  						lis[i].onmouseout=function() {
									this.className = this.className.substring(0,this.className.indexOf(" hovering"));
		  							toggleSelects("visible");
		  						}
	  						}
	  					}
	  				}
	  			}
	  		}
	  	}
	}
}

function toggleSelects(state) {
	var mySelects = document.getElementsByTagName('SELECT');
	for (var i=0;i<mySelects.length;i++) {
		mySelects[i].style.visibility = state;
	}
}


window.onload = addHoverListHandlers;