/* POP UP */
	
	var popWindow = null;
	
	function popup(archivo,width,height) {
			var hor
			var ver
			var ubix
			var ubiy
			ubix=width/2
			ubiy=height/2
			hor= screen.width/2-ubix;
			ver= screen.height/2-ubiy;
			
			if(popWindow != null)
				popWindow.close();
			
			popWindow = window.open(archivo,"", "left="+hor+",top="+ver+",toolbar=0,location=0,directories=0,status=0,menubar=no,scrollbars=no,resizable=no,width="+width+",height="+height);
	}