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 checkFirst(){
   // check if this is a first time visitor and if so, set flag
   newVisitor = 0;
   var myCookie = " " + document.cookie + ";";
   var searchName = "__utma=";
   var startOfCookie = myCookie.indexOf(searchName)
   if (startOfCookie == -1) {   // i.e. first time visitor
      newVisitor = 1;
   }
}

function grabReferrer(){
   // if first visit, grab utmz cookie values and put in utmv
   if (newVisitor) {
	  
      var z = _uGC(document.cookie, "__utmz=", ";");
      urchin_source = _uGC(z,"utmcsr=", "|");
      urchin_medium = _uGC(z,"utmcmd=", "|");
      urchin_term = _uGC(z,"utmctr=", "|");
      urchin_content = _uGC(z,"utmcct=", "|");
      urchin_campaign = _uGC(z,"utmccn=", "|");
      var gclid = _uGC(z,"utmgclid=","|");
      
	  firstReferrer = urchin_source + ' / ' + urchin_medium;
	  
	try{
		  pageTracker._setCustomVar(
		      3,                	// This custom var is set to slot #3
		      "First Source",    	// The name of the custom variable
		      firstReferrer,        // The value of the custom variable 
			  1 		           	// Sets the scope to visitor-level
		 );
		 
		 /*
		 pageTracker._trackEvent(
		  "First Visit From", 
		  firstReferrer
	   );*/
		 
	}catch(err) {}
		
   }
   
}