//-------------- Pop Up-----------------------
var ancho_screen=screen.width;
var alto_screen=screen.height;
function abrirPopUp(cual,x,y){
//	alert("popup");
	var xx=(ancho_screen-x)/2;
	var yy=(alto_screen-y)/2;
	var cad="toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width="+x+",height="+y+",left="+xx+",top="+yy;
	window.open(cual,"ventana",cad);
}
//--------- Fin Pop Up-----------------------