function _uGC(l,n,s) {
 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 populateHiddenFields() {
	//
	// Get the __utmz cookie value. This is the cookies that
	// stores all campaign information.
	//
	var z = _uGC(document.cookie, '__utmz=', ';');
	//
	// The cookie has a number of name-value pairs.
	// Each identifies an aspect of the campaign.
	//
	// utmcsr  = campaign source
	// utmcmd  = campaign medium
	// utmctr  = campaign term (keyword)
	// utmcct  = campaign content (used for A/B testing)
	// utmccn  = campaign name
	// utmgclid = unique identifier used when AdWords auto tagging is enabled
	//
	// This is very basic code. It separates the campaign-tracking cookie
	// and populates a variable with each piece of campaign info.
	//
	var source  = _uGC(z, 'utmcsr=', '|');
	var medium  = _uGC(z, 'utmcmd=', '|');
	var term    = _uGC(z, 'utmctr=', '|');
	var content = _uGC(z, 'utmcct=', '|');
	var campaign = _uGC(z, 'utmccn=', '|');
	var gclid   = _uGC(z, 'utmgclid=', '|');
	//
	// The gclid is ONLY present when auto tagging has been enabled.
	// All other variables, except the term variable, will be '(not set)'.
	// Because the gclid is only present for Google AdWords we can
	// populate some other variables that would normally
	// be left blank.
	//
	if (gclid !="-") {
	      source = 'google';
	      medium = 'cpc';
	}
	// Data from the custom segmentation cookie can also be passed
	// back to your server via a hidden form field
	var csegment = _uGC(document.cookie, '__utmv=', ';');
	if (csegment != '-') {
	      var csegmentex = /[1-9]*?\.(.*)/;
	      csegment    = csegment.match(csegmentex);
	      csegment    = csegment[1];
	} else {
	      csegment = '';
	}
	
    document.getElementById('UserCampaignSource').value = source;
    document.getElementById('UserCampaignMedium').value = medium;
    document.getElementById('UserCampaignTerm').value = term;
    document.getElementById('UserCampaignContent').value = content;
    document.getElementById('UserCampaignCampaign').value = campaign;
    document.getElementById('UserCampaignSegment').value = csegment;
    return true;
}