// JavaScript Document
//Funcion PopUp
var ancho=screen.width;
var alto=screen.height;
function abrir(cual,x,y,s){
 var xx=(ancho-x)/2;
 var yy=(alto-y)/2;
 var cad="toolbar=no,location=no,status=no,menubar=no,scrollbars="+s+",resizable=no,width="+x+",height="+y+",left="+xx+",top="+yy;
 window.open(cual,"ventana",cad);
}