function openDialog(url, title, width, height) {
	var contentWin = new Window({
		className: "dialog", 
		title: title, 
		width: width, 
		height: height, 
		zIndex: 200, 
		okLabel: "OK", 
		
		resizable: false, 
		closable: true, 
		minimizable: false, 
		maximizable: false, 
		draggable: false, 
		destroyOnClose: true, 
		
//		showEffect:Effect.BlindDown, 
//		hideEffect: Effect.SwitchOff, 
		url: url, 
		onShow: function(e) {
			Event.observe('overlay_modal', 'click', function(e){
				Windows.closeAll();
			}, false);
		}
	});
	contentWin.showCenter(true);
	//contentWin.show(true);
}

function Wopen(url,fname,width,height){
	window.open(url,fname,"width="+width+",height="+height+",scrollbars=yes,status=no,resizable=no,toolbar=no,location=no,menubar=no");
}