function init()
{
	if (document.getElementById)
		var x = document.getElementById('navigation').getElementsByTagName('IMG');
	else if (document.all)
		var x = document.all['navigation'].all.tags('IMG');
	else return;
	var preloads = new Object();
	
	for (var i=0;i<x.length;i++)
	{
		if(x[i].id !='')
		{
		preloads['n'+x[i].id] = new Image;
		preloads['n'+x[i].id].src = '/images/nav/'+ x[i].id + '.gif';
		//alert( 'images/nav/'+ x[i].id + '.gif');
		preloads[x[i].id] = new Image;
		preloads[x[i].id].src = '/images/nav/'+ x[i].id + '_on.gif';
		preloads[x[i].id].onerror = function () {this.src='/images/default.gif'}
		x[i].onmouseover = function () {this.src=preloads[this.id].src;}
		x[i].onmouseout = function () {this.src=preloads['n'+this.id].src;}
		}
	}
}