var myurl = window.location.hostname;
var domain_exp = /\.\w+\.\w+$/;
var ref = read_search('ref');

var ampersand = /&/g;
var spacer = / /g;
var hist = document.referrer;
if (hist != 'undefined') {
	hist = hist.replace(ampersand, "%26");
	hist = hist.replace(spacer, "%20");
}

	
// let the cgi know
var call = '/vmx_image.cgi?site=' + vmxsite + '&code=' + vmxpage;
if (ref != '' && ref != 'undefined') { call += '&ref=' + ref; }
if (hist != '' && hist != 'undefined') { call += '&hist=' + hist; }
document.write('<img height="1" width="1" border="0" src="', call, '">');


function read_search(cname) {
	var cn = cname + "=";
	var allsearch = location.search.substring(1);
	var pos = allsearch.indexOf(cn);
	if (pos != -1) {
		var start = pos + cn.length;
		var end = allsearch.indexOf("&", start);
		if (end == -1) end = allsearch.length;
		var value = allsearch.substring(start, end);
		value = unescape(value);
		return value;
	}
	return;
}