function Zoom(FILE)
{
		var winmail;
		var TextLink = "Zoom.asp?FILE="+ FILE;
		
		if (window.screen) 
		{
			var ancho = window.screen.width;
			var alto = window.screen.height;
			
			ancho = ancho - 500;
			ancho = ancho /2;
			
			alto = alto - 500;
			alto = alto /2;
			
			var propiedades = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no	,resizable=no,width=500,height=500,top="+alto+",left="+ancho;
			winmail = window.open("", "winmail", propiedades);
			winmail.close();
			winmail = window.open(TextLink, "winmail", propiedades);
			winmail.focus();				
		}

}