sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
			hideSelects();
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			showSelects();
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

try{
	document.execCommand('BackgroundImageCache', false, true); 
}
catch(e) {}

function showSelects() {
    var selectContainer = document.getElementsByTagName("SELECT");
    for(i=0; i<selectContainer.length; i++)
        selectContainer[i].style.visibility = "visible";
}

function hideSelects() {
    var selectContainer = document.getElementsByTagName("SELECT");
    for(i=0; i<selectContainer.length; i++)
        selectContainer[i].style.visibility = "hidden";
}