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top_navHover = function() {
	var sfEls = document.getElementById("top_nav_items").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" top_navHover";
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		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" top_navHover\\b"), "");
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}
if (window.attachEvent) window.attachEvent("onload", top_navHover);

function checkNewsletter()
{
	if (document.newsletter.email.value.length == 0)
	{
		alert ("Please provide your e-mail address.");
		document.newsletter.email.select();
		return false;
	}

	if (document.newsletter.email.value.indexOf("@")<=0)
	{
		alert ("Please provide a valid e-mail address.");
		document.newsletter.email.select();
		return false;
	}
	return true;
}