document.body.onload=funcall;
function funcall()
{
	var trackingDetails = readCookie("ext%5Furl%5Fval");
	//alert("Cookie is " + trackingDetails);
	for (i=0;i != document.getElementsByTagName("img").length;i++)
	{
		if (document.getElementsByTagName("img")(i).src.indexOf('userTrack.gif') > 0)
		{
			document.getElementsByTagName("img")(i).src = document.getElementsByTagName("img")(i).src + '&random=' + Math.random() + '&' + trackingDetails;
			//alert(document.getElementsByTagName("img")(i).src);
		}
	}
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}