function _uGC(l,n,s) {

  // used to obtain a value form a string of key=value pairs
  if (!l || l=="" || !n || n=="" || !s || s=="") return "-";
  var i,i2,i3,c="-";

  i=l.indexOf(n);

  i3=n.indexOf("=")+1;
  if (i > -1) {
     i2 = l.indexOf(s,i);
     if (i2 < 0) { i2=l.length; }
     c=l.substring((i+i3),i2);
  }
  return c;
 }


 function setHidden(f) {
   // set values for hidden form fields
   var z = _uGC(document.cookie, "utmz=",";");
   f.web_source_c.value = _uGC(z,"utmctr=","|");

   /*
   f.web_source_c.value = _uGC(z,"utmcsr=","|");
   f.web_medium.value = _uGC(z, "utmcmd=","|");
   f.web_term_c.value = _uGC(z,"utmcct+","|");
   f.web_campaign.value = _uGC(z,"utmccn=","|");

   var gclid = _uGC(z,"utmgclide=","|");
   if (gclid) {
      f.web_source_c.value = "google";
      f.web_medium.value = "cpc";
      f.web_term_c.value = "";        //remove previous info if any
      f.web_content.value = "";     //remove previous info if any
      f.web_campaign.value = "";    //remove previous info if any
    }
    */
 }