function openLinkWindow(URL)
  {
   linkWindow=window.open(URL,"linkInfo","width=900,height=1100,dependent=yes,resizable=no,scrollbars=yes,toolbar=no,menubar=no");
    linkWindow.focus();
   
  }



var upper_limit = 6;
var urlnumber = 0;


function RandomNumber() 
{ 
urlnumber = Math.round(upper_limit * Math.random());
}

RandomNumber();