// encode url
function urlencode(string) {
    var str = "";
    str = encodeURIComponent(string);
    str = str.replace(/\-/g, '%2D');
    str = str.replace(/\./g, '%2E');
    str = str.replace(/\//g, '%2F');
    return str;
}

// get user cookies
function getCookie(name) {
    var matches = document.cookie.match(new RegExp(
      "(?:^|; )" + name.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g, '\\$1') + "=([^;]*)"
    ))
    return matches ? decodeURIComponent(matches[1]) : undefined
}

// set user cookies
function setCookie(name, value, props) {
    props = props || {}
    var exp = props.expires
    if (typeof exp == "number" && exp) {
        var d = new Date()
        d.setTime(d.getTime() + exp*1000)
        exp = props.expires = d
    }
    if(exp && exp.toUTCString) { props.expires = exp.toUTCString() }

    value = encodeURIComponent(value)
    var updatedCookie = name + "=" + value
    for(var propName in props){
        updatedCookie += "; " + propName
        var propValue = props[propName]
        if(propValue !== true){ updatedCookie += "=" + propValue }
    }
    document.cookie = updatedCookie

}

var cookie = getCookie('wsetracker');
if (cookie == undefined) {
    cookie = '442A001D-1DC2-39D5-2023-BC3E56A1F4F7';
}

setCookie('wsetracker', cookie, { expires: 315360000} ); // 315360000 - 10 years

// generates img tag
var url = 'usr=' + urlencode(cookie) + '&rip=' + urlencode('140.247.201.10') + '&pgreferer=' + urlencode(document.referrer) + '&domain=' + urlencode(document.domain) + '&pgurl=' + urlencode(location.href) + '&cust=' + urlencode('1830028') + '&nocache=' + urlencode(Math.random());
document.write('<img src="http://www.dexknows.com/images/wbtrk.gif' + '?' + url + '"/>');