function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		header_evenementen_01_Afbeelding_met_hyperlinks_01_over = newImage("/images/header_evenementen_01-Afbee.gif");
		header_evenementen_01_Afbeelding_met_hyperlinks_02_over = newImage("/images/header_evenementen_01-Af-03.gif");
		header_evenementen_01_Afbeelding_met_hyperlinks_03_over = newImage("/images/header_evenementen_01-Af-04.gif");
		preloadFlag = true;
	}
}

function open_Popup(name, winName, winWidth, winHeight) 
{
var newWindow = window.open(name, winName, 'width=' + winWidth + ',height=' + winHeight + ',scrollbars=yes,resizable=no,toolbar=no,status=no,menubar=no');
}