// JavaScript Document
	function muestra(obj){
			if (document.getElementById(obj).style["display"] == "")
				 document.getElementById(obj).style["display"] = "none"
			 else
				 document.getElementById(obj).style["display"] = ""
	}
	
	function popup (url, width, height, top, left, resizable, toolbar)
{
	var opciones="toolbar="+toolbar+", location="+toolbar+", directories="+toolbar+", status="+toolbar+", menubar="+toolbar+", scrollbars=yes, resizable="+resizable+", width="+width+", height="+height+", top="+top+", left="+left;
	window.open(url,"",opciones);
}