function replace(string,text,by)
	{
	// Replaces text with by in string
	var strLength = string.length, txtLength = text.length;
	if ((strLength == 0) || (txtLength == 0)) return string;

	var i = string.indexOf(text);
	if ((!i) && (text != string.substring(0,txtLength))) return string;
	if (i == -1) return string;

	var newstr = string.substring(0,i) + by;

	if (i+txtLength < strLength)
	newstr += replace(string.substring(i+txtLength,strLength),text,by);

	return newstr;
	}

var ref = document.referrer;
ref=replace(ref,'=','%3D');
ref=replace(ref,'&','%26');
ref=replace(ref,'+','%2B');
document.write('<IMG SRC="traffic.php?str=' + ref + '" BORDER="0" WIDTH="1" HEIGHT="1">');