expireDate = new Date;
    expireDate.setMonth(expireDate.getMonth()+1);
    
    function setCookie(signUpVal)
    {
      document.cookie = "signUp=" + signUpVal + ";expires=" + expireDate.toGMTString();
    }
    var showit="true"; // set to false to suppress pop up.
    function xit(url) 
    {
      var win='toolbar=0,location=0,directories=0,menubar=0,scrollbars=0,status=1,resizable=1,target=_blank,width=600,height=580';
      if ( ( document.cookie == "" ) || ( document.cookie.split("=")[1] != 1) )
      { 
        if (showit)
        {
          setCookie(1);
          showit=0;
          msg=open(url,'Before_You_Go',win);
        }
      }
    }
    function removeCookies ()
    {
      if (document.cookie != "" )
      {
        thisCookie = document.cookie.split("; ");
        expireDate = new Date;
        expireDate.setDate(expireDate.getDate()-1);
        for (i=0; i<thisCookie.length; i++)
        {
          cookieName = thisCookie[i].split("=")[0];
          document.cookie = cookieName + "=;expires=" + expireDate.toGMTString();
        }
      }
    }