function initMenu()
{
	if (document.getElementById) {
		var x = document.getElementById('menuknoppen').getElementsByTagName('IMG');
	} else if (document.all) {
		var x = document.all['menuknoppen'].all.tags('IMG');
	}
	else return;
	var preloads = new Object();
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id != "scheidingslijn") {
		
		preloads['n'+x[i].id] = new Image;
		preloads['n'+x[i].id].src = x[i].src;
		preloads['o'+x[i].id] = new Image;
		preloads['o'+x[i].id].src = 'images/bt-'+ x[i].id + '-1.gif';
		preloads['d'+x[i].id] = new Image;
		preloads['d'+x[i].id].src = 'images/bt-'+ x[i].id + '-2.gif';
		preloads['o'+x[i].id].onerror = function () {this.src='images/bg-menu-doorloop.gif'}
		x[i].onmouseover = function () {this.src=preloads['o'+this.id].src;}
		x[i].onmouseout = function () {this.src=preloads['n'+this.id].src;}
		x[i].onmousedown = function () {this.src=preloads['d'+this.id].src;}
		}
	}
}

window.onload=initMenu;