function _uGC(l,n,s) {

// originally from urchin.js 



     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;

}





// 

// 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 = ''; 

} 

function populateHiddenFields(f) { 

      f.source.value  = source; 

      f.medium.value  = medium; 

      f.term.value    = term; 

      f.content.value = content; 

      f.campaign.value = campaign; 

      f.segment.value = csegment; 

      return true; 

	  document.write(source + medium + term + content + campaign + csegment);

}