function popup(url,wdth,hght,scrll,nm) {
	var winl = (screen.width - wdth) / 2;
	var wint = (screen.height - hght) / 2;
	hauptfenster = window.open(url,nm,'top='+wint+',left='+winl+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scrll+',resizable=no,copyhistory=no,width='+wdth+',height='+hght);
	hauptfenster.focus();
}
function rollOverL1(arg) {
	document.getElementById(arg).style.background = "url(media/image/nav_level1_back_h.gif)";
	document.getElementById(arg+"Text").style.color = "#FFFFFF";
	document.getElementById(arg).style.cursor = "hand";
	document.getElementById(arg).style.cursor = "pointer";
}
function rollOutL1(arg) {
	document.getElementById(arg).style.background = "url(media/image/nav_level1_back.gif)";
	document.getElementById(arg+"Text").style.color = "#3C3C3C";
}
function rollOverL2(arg) {
	document.getElementById(arg).style.background = "#339B95";
	document.getElementById(arg).style.cursor = "hand";
	document.getElementById(arg).style.cursor = "pointer";
}
function rollOutL2(arg) {
	document.getElementById(arg).style.background = "#7C7C7C";
}
function rollOverL3(arg) {
	document.getElementById(arg).style.background = "url(media/image/nav_level3_back_h.gif)";
	document.getElementById(arg).style.cursor = "hand";
	document.getElementById(arg).style.cursor = "pointer";
}
function rollOutL3(arg) {
	document.getElementById(arg).style.background = "url(media/image/nav_level3_back.gif)";
}