var searchString = window.location.search.substring(1);
var Parameters = new Object();
var nameValuePairs = searchString.split(/&/);
var nameValuePair;
var name;
var value;

for (var i = 0; i < nameValuePairs.length; i++) {
    nameValuePair = nameValuePairs[i].split(/=/);
    name = nameValuePair[0];
    value = nameValuePair[1];
    name = name.toLowerCase();

    if (name == "affiliate") {
        if (typeof (value) != "undefined") {
            value = value.toLowerCase();
            pathname = location.pathname;
            myDomain = pathname.substring(0, pathname.lastIndexOf('/')) + '/';
            // set expiry date to 30 days from now.
            var largeExpDate = new Date();
            largeExpDate.setTime(largeExpDate.getTime() + (30 * 24 * 3600 * 1000));
            SetCookie(name, value, largeExpDate, myDomain);
        }
    }
}


function SetCookie(name, value) {
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;

    var path = (argc > 3) ? argv[3] : null;
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    document.cookie = name + "=" + escape(value) +
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
		((path == null) ? "" : ("; path=" + path)) +
		((domain == null) ? "" : ("; domain=" + domain)) +
		((secure == true) ? "; secure" : "");
}

function getCookieVal(offset) {
    var endstr = document.cookie.indexOf(";", offset);
    if (endstr == -1)
        endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}
function GetCookie(name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
            return getCookieVal(j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0)
            break;
    }
    return null;
}