preloadImages = function() {
	var imglist = new Array();
	var imgs = new Array();
	var count;
	if (document.images) {
		for (count=0; count<imglist.length; count++) {
			imgs[count]=new Image(); imgs[count].src=imglist[count];
		}
	}
}

sfHover = function() {
	var idList = new Array('navigation');
	var count;
	for (count=0; count<idList.length; count++) {
		var sfEls = document.getElementById(idList[count]).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);
	window.attachEvent("onload", preloadImages);
}

var oldimage = "";

function changeback(){
	if(navigator.appName == "Netscape"){
		theimage = document.getElementById("headerimage")
		theimage.src = oldimage;
	} else {
		document.all.headerimage.src = oldimage;
	}
}

function changeheader(file){
	if(navigator.appName == "Netscape"){
		theimage = document.getElementById("headerimage")
		oldimage = theimage.src;
		theimage.src = "fileadmin/cfoxpert/images/" +  file;

	} else {
		oldimage = document.all.headerimage.src;
		document.all.headerimage.src = "fileadmin/cfoxpert/images/" + file;
	}
}