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

var popWin = null;
function dodem(strURL) {
	if (popWin != null && !popWin.closed)
		popWin.close();
	popWin = window.open("demos/"+strURL+".htm", 'popWin', "status=no,scrollbars=no,width=920,height=753");
	popWin.focus();
}
function doimg(strURL, strWidth, strHeight) {
	var strOptions="";
	strOptions="status=no,scrollbars=no"+
		",height="+ strHeight+
		",width="+strWidth;
	if (popWin != null && !popWin.closed)
		popWin.close();
	popWin = window.open("images/"+strURL+".png", 'popWin', strOptions);
	popWin.focus();
}