function confirmar_url(url,texto)
{
	if (confirm (texto)) {self.location=url;}
}

function url_self()
{
	var text;
	
	text=location.href;
	var array_text=text.split("?");
    return array_text[0];
}

function openZoom(url,w,h)
{
  var str="height="+h+",width="+w+", toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no";
  window.open(url,"_blank",str);
}