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

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