function gup( name )
{
    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    var regexS = "[\\?&]"+name+"=([^&#]*)";
    var regex = new RegExp( regexS );
    var results = regex.exec( window.location.href );
    if( results == null )
	return "";
    else
	return results[1];
}

function track()
{
    var i=new Image(1,1);

    var gclid = gup('gclid');
    if (gclid)
    {
	i.src="/images/track.gif?ref="+encodeURIComponent(document.referrer)+"&gclid="+gclid;
    }
    else
    {
	i.src="/images/track.gif?ref="+encodeURIComponent(document.referrer);
    }
    
    i.onload=function() {voidFun();}
}

function voidFun() { return; }