function roll()
{
	var imgs = document.getElementsByTagName("img");
	for(var i = 0; i<imgs.length; i++)
	{
		if (imgs[i].className.match("roll"))
		{
			var preload = new Image(); 
			preload.src = imgs[i].src.replace("_off.", "_on.");
			imgs[i].onmouseover = function () {
			this.src= this.src.replace("_off.","_on.");
			if(parseInt(this.id.substring(2))>0)showsub(parseInt(this.id.substring(2)));
			}
			if (!imgs[i].src.match("_on")) { 
				imgs[i].onmouseout = function () {
				this.src = this.src.replace("_on.","_off.");
				if(parseInt(this.id.substring(2))>0)hidesub(parseInt(this.id.substring(2)));
				} 
			}
			imgs[i].style.cursor = "pointer";
		}
	}
}
	
function showsub(id)
{
	$('ddmenu'+id).style.display='block';
	$('a_'+id+'_upmenu').src= $('a_'+id+'_upmenu').src.replace("_off.","_on.");
	//document.getElementById('a_'+id+'_upmenu').className = "";
	//roll();
}
function hidesub(id)
{
	$('ddmenu'+id).style.display='none';
	setTimeout("backToRoll("+id+")", 50);
	//$('a_'+id+'_upmenu').src= $('a_'+id+'_upmenu').src.replace("_on.","_off.");
	//document.getElementById('a_'+id+'_upmenu').className = "roll";
	//roll();
}

function backToRoll(id){
	if($('ddmenu'+id).style.display=='none')
		$('a_'+id+'_upmenu').src= $('a_'+id+'_upmenu').src.replace("_on.","_off.");
}

window.onload = function() { roll(); init();}