function MM_jumpMenu(targ,selObj,restore){ //v3.0
		  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
		  if (restore) selObj.selectedIndex=0;
		}	
		
		function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setFooter() {
			if (document.getElementById) {
				var windowHeight = getWindowHeight();

				if (windowHeight > 0) {
					var contentHeight = document.getElementById('weergave').offsetHeight;
					var footerElement = document.getElementById('overzicht');
						footerElement.style.position = 'relative';
						footerElement.style.height = (contentHeight)  + 'px';
				}
			}
		}

		window.onload = function() {
			setFooter();
		}
		window.onresize = function() {
			setFooter();
		}

var message="Deze functie is niet beschikbaar.";

function clickIE4(){
if (event.button==2){
alert(message);
return false;
}
}

function clickNS4(e){
if (document.layers||document.getElementById&&!document.all){
if (e.which==2||e.which==3){
alert(message);
return false;
}
}
}

if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=clickNS4;
}
else if (document.all&&!document.getElementById){
document.onmousedown=clickIE4;
}

document.oncontextmenu=new Function("alert(message);return false")