function sfHover() {
	var sfEls = document.getElementById("navMain").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			var elmNum = this.id.substring(4, 5);
			swapImage(elmNum);
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			var elmNum = this.id.substring(4, 5);
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			swapImageReturn(elmNum);
		}
	}
}

function swapImage(imgNum) {
	var targetImg = document.getElementById("default");
	var targetNav = document.getElementById("navImg0"+imgNum);
	if (targetImg != null) {
		targetImg.src = "/images/home/image0"+imgNum+".jpg";
	}
	if (targetNav != null) {
		if (targetNav.className != "active")
		{
			targetNav.src = "/images/common/nav0"+imgNum+"_over.gif";
		}
	}
}
function swapImageReturn(imgNum) {
	var targetImg = document.getElementById("default");
	if (targetImg != null) {
		targetImg.src = "/images/home/default.jpg";
	}
	var targetNav = document.getElementById("navImg0"+imgNum);
	if (targetNav != null) {
		if (targetNav.className != "active")
		{
			targetNav.src = "/images/common/nav0"+imgNum+".gif";
		}
	}
}
function getPrevPage()
{
	if (document.contactusformform != null)
	{
		if (document.contactusformform.prevPage.value == "")
		{
			document.contactusformform.prevPage.value = document.referrer;
		}
	}
}
window.addLoadEvent(sfHover);
window.addLoadEvent(getPrevPage);