// Google Analytics Tracking Code - first and last referrer

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
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(){
// grab campaign and referrer info from the _utmz cookie
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=","|");
if (gclid) {
urchin_source = "google";
urchin_medium = "cpc";
}
pageTracker._setVar(urchin_term);
}
}