function myCheckMenu(intPageid) {

	if (document.cookie) {

		<!-- alert("Gesamt: " + document.cookie); -->

		for(var i = 0; i < (document.cookie.length / 10); i++) {
			intPageidToOpen = document.cookie.substring(((i * 10) + 10), (i * 10));
			if (document.getElementById('ul_' + intPageidToOpen) && document.getElementById('li_' + intPageidToOpen)) {
				document.getElementById('ul_' + intPageidToOpen).style.display = 'block';
				document.getElementById('li_' + intPageidToOpen).className = 'opened';
			}
		}

	}
	else {

		if (document.getElementById('li_' + intPageid).className != '') {
			document.cookie = intPageid;
		}

	}

	if (document.getElementById('li_' + intPageid).className != '') {

		intPageidCookie = document.cookie;

		<!-- Cookie expires in 30 days -->
		var strNewDate = new Date();
		var strValidTill = strNewDate.getTime() + (30 * 24 * 60 * 60 * 1000);
		strNewDate.setTime(strValidTill);

		if (intPageidCookie.indexOf(intPageid) == -1) {
			document.cookie = intPageidCookie + intPageid + "; expires=" + strNewDate.toGMTString();
		}
		else {
			intPageidCookieNew = document.cookie.replace(intPageid, "");
			if (intPageidCookieNew > 0) {
				document.cookie = intPageidCookieNew + "; expires=" + strNewDate.toGMTString();
			}
			else {
				if (intPageidCookieNew.length == 0 && document.getElementById('li_' + intPageid).className == 'opened') {
					document.cookie = "";
				}
			}

		}

	}

	<!-- alert(document.cookie) -->;

}

function myOnClick(intPageid) {

	self.focus();

	myCheckMenu(intPageid);

	if (document.getElementById('li_' + intPageid).className == 'closed') {
		document.getElementById('ul_' + intPageid).style.display = 'block';
		document.getElementById('li_' + intPageid).className = 'opened';
	}
	else {
		document.getElementById('ul_' + intPageid).style.display = 'none';
		document.getElementById('li_' + intPageid).className = 'closed';
	}

	myResizeBase();

}

function myShowImage(image) {
	source = "./showimage.php?image=" + image;
	var newwindow = window.open(source, 'showimage', 'location=0, menubar=0, toolbar=0, personalbar=0, status=0, scrollbars=0, width=640, height=480');
}

function myShowQuickTime(movie) {
	source = "./showquicktime.php?movie=" + movie;
	var newwindow = window.open(source, 'showquicktime', 'location=0, menubar=0, toolbar=0, personalbar=0, status=0, scrollbars=0, width=450, height=492');
}

function myShowInstruction(image) {
	source = "./showinstruction.php?image=" + image;
	var newwindow = window.open(source, 'showinstruction', 'location=0, menubar=0, toolbar=0, personalbar=0, status=0, scrollbars=0, width=800, height=700');
}

function transparency(element, percentage) {
	var i, count, objStyle;
	if(document.getElementById) {
		if(typeof(element) == "object" && element) {
			obj = element;
		}
		else if (document.getElementsByName(element) && document.getElementsByName(element)[0]) {
			obj = document.getElementsByName(element);
		}
  		else if (document.getElementById(element)) {
  			obj = document.getElementById(element);
  		}
  		else if (document.getElementsByTagName && document.getElementsByTagName(element) && document.getElementsByTagName(element)[0]) {
  			obj = document.getElementsByTagName(element);
  		}
  		else {
  			obj = false;
  		}
		if(obj) {
			percentage=(typeof(percentage)=="undefined") ? 50:100 - percentage;
			count=(obj.length) ? obj.length:1;
			for(i = 0; i < count; i++) {
				objStyle = (obj.length) ? obj[i].style:obj.style;
				objStyle.filter = "Alpha(opacity=" + percentage + ")";
				objStyle.KTHMLOpacity = "" + percentage/100;
				objStyle.MozOpacity = "" + percentage/100;
				objStyle.opacity = "" + percentage/100;
			}
		}
	}
}