var vxTrafficURL = 'http://traffic.voxeo.com/trafficLogger.jsp';

var vxSite = '';
var vxType = '';
var vxScore = 0;

// Javascript MD5 implementation based on http://pajhome.org.uk/crypt/md5/md5src.html
function hex_md5(s){return binl2hex(core_md5(str2binl(s),s.length*8));}function core_md5(x,len){x[len>>5]|=0x80<<((len)%32);x[(((len+64)>>>9)<<4)+14]=len;var a=1732584193;var b=-271733879;var c=-1732584194;var d=271733878;for(var i=0;i<x.length;i+=16){var olda=a;var oldb=b;var oldc=c;var oldd=d;a=md5_ff(a,b,c,d,x[i+0],7,-680876936);d=md5_ff(d,a,b,c,x[i+1],12,-389564586);c=md5_ff(c,d,a,b,x[i+2],17,606105819);b=md5_ff(b,c,d,a,x[i+3],22,-1044525330);a=md5_ff(a,b,c,d,x[i+4],7,-176418897);d=md5_ff(d,a,b,c,x[i+5],12,1200080426);c=md5_ff(c,d,a,b,x[i+6],17,-1473231341);b=md5_ff(b,c,d,a,x[i+7],22,-45705983);a=md5_ff(a,b,c,d,x[i+8],7,1770035416);d=md5_ff(d,a,b,c,x[i+9],12,-1958414417);c=md5_ff(c,d,a,b,x[i+10],17,-42063);b=md5_ff(b,c,d,a,x[i+11],22,-1990404162);a=md5_ff(a,b,c,d,x[i+12],7,1804603682);d=md5_ff(d,a,b,c,x[i+13],12,-40341101);c=md5_ff(c,d,a,b,x[i+14],17,-1502002290);b=md5_ff(b,c,d,a,x[i+15],22,1236535329);a=md5_gg(a,b,c,d,x[i+1],5,-165796510);d=md5_gg(d,a,b,c,x[i+6],9,-1069501632);c=md5_gg(c,d,a,b,x[i+11],14,643717713);b=md5_gg(b,c,d,a,x[i+0],20,-373897302);a=md5_gg(a,b,c,d,x[i+5],5,-701558691);d=md5_gg(d,a,b,c,x[i+10],9,38016083);c=md5_gg(c,d,a,b,x[i+15],14,-660478335);b=md5_gg(b,c,d,a,x[i+4],20,-405537848);a=md5_gg(a,b,c,d,x[i+9],5,568446438);d=md5_gg(d,a,b,c,x[i+14],9,-1019803690);c=md5_gg(c,d,a,b,x[i+3],14,-187363961);b=md5_gg(b,c,d,a,x[i+8],20,1163531501);a=md5_gg(a,b,c,d,x[i+13],5,-1444681467);d=md5_gg(d,a,b,c,x[i+2],9,-51403784);c=md5_gg(c,d,a,b,x[i+7],14,1735328473);b=md5_gg(b,c,d,a,x[i+12],20,-1926607734);a=md5_hh(a,b,c,d,x[i+5],4,-378558);d=md5_hh(d,a,b,c,x[i+8],11,-2022574463);c=md5_hh(c,d,a,b,x[i+11],16,1839030562);b=md5_hh(b,c,d,a,x[i+14],23,-35309556);a=md5_hh(a,b,c,d,x[i+1],4,-1530992060);d=md5_hh(d,a,b,c,x[i+4],11,1272893353);c=md5_hh(c,d,a,b,x[i+7],16,-155497632);b=md5_hh(b,c,d,a,x[i+10],23,-1094730640);a=md5_hh(a,b,c,d,x[i+13],4,681279174);d=md5_hh(d,a,b,c,x[i+0],11,-358537222);c=md5_hh(c,d,a,b,x[i+3],16,-722521979);b=md5_hh(b,c,d,a,x[i+6],23,76029189);a=md5_hh(a,b,c,d,x[i+9],4,-640364487);d=md5_hh(d,a,b,c,x[i+12],11,-421815835);c=md5_hh(c,d,a,b,x[i+15],16,530742520);b=md5_hh(b,c,d,a,x[i+2],23,-995338651);a=md5_ii(a,b,c,d,x[i+0],6,-198630844);d=md5_ii(d,a,b,c,x[i+7],10,1126891415);c=md5_ii(c,d,a,b,x[i+14],15,-1416354905);b=md5_ii(b,c,d,a,x[i+5],21,-57434055);a=md5_ii(a,b,c,d,x[i+12],6,1700485571);d=md5_ii(d,a,b,c,x[i+3],10,-1894986606);c=md5_ii(c,d,a,b,x[i+10],15,-1051523);b=md5_ii(b,c,d,a,x[i+1],21,-2054922799);a=md5_ii(a,b,c,d,x[i+8],6,1873313359);d=md5_ii(d,a,b,c,x[i+15],10,-30611744);c=md5_ii(c,d,a,b,x[i+6],15,-1560198380);b=md5_ii(b,c,d,a,x[i+13],21,1309151649);a=md5_ii(a,b,c,d,x[i+4],6,-145523070);d=md5_ii(d,a,b,c,x[i+11],10,-1120210379);c=md5_ii(c,d,a,b,x[i+2],15,718787259);b=md5_ii(b,c,d,a,x[i+9],21,-343485551);a=safe_add(a,olda);b=safe_add(b,oldb);c=safe_add(c,oldc);d=safe_add(d,oldd);}return Array(a,b,c,d);}function md5_cmn(q,a,b,x,s,t){return safe_add(bit_rol(safe_add(safe_add(a,q),safe_add(x,t)),s),b);}function md5_ff(a,b,c,d,x,s,t){return md5_cmn((b&c)|((~b)&d),a,b,x,s,t);}function md5_gg(a,b,c,d,x,s,t){return md5_cmn((b&d)|(c&(~d)),a,b,x,s,t);}function md5_hh(a,b,c,d,x,s,t){return md5_cmn(b^c^d,a,b,x,s,t);}function md5_ii(a,b,c,d,x,s,t){return md5_cmn(c^(b|(~d)),a,b,x,s,t);}function safe_add(x,y){var lsw=(x&0xFFFF)+(y&0xFFFF);var msw=(x>>16)+(y>>16)+(lsw>>16);return(msw<<16)|(lsw&0xFFFF);}function bit_rol(num,cnt){return (num<<cnt)|(num>>>(32-cnt));}function str2binl(str){var bin=Array();var mask=(1<<8)-1;for(var i=0;i<str.length*8;i+=8)bin[i>>5]|=(str.charCodeAt(i/8)&mask)<<(i%32);return bin;}function binl2hex(binarray){var hex_tab='0123456789abcdef';var str='';for(var i=0;i<binarray.length*4;i++){str+=hex_tab.charAt((binarray[i>>2]>>((i%4)*8+4))&0xF)+hex_tab.charAt((binarray[i>>2]>>((i%4)*8))&0xF);}return str;}

function vxSetCookie(name, value, days){
    var expires='';
    if (days) {
        var date=new Date();
        date.setTime(date.getTime() + (days * 86400000));
        var expires = '; expires=' + date.toGMTString();
    }

    document.cookie = name + '=' + value + expires + '; path=/';
}

function vxGetCookie(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;
}

function vxGetCookieHash(){
   var random = Math.random();
   var date = new Date;
   var time = date.getTime();
   return hex_md5(  time
                    + top.document.location
                    + navigator.userAgent
                    + random);
}

function vxLogger() {
    var vxLocation = escape(top.document.location);
    var vxReferrer = escape(top.document.referrer);
    var vxUserAgent = escape(navigator.userAgent);

    var vxSessionCookie = vxGetCookie('vxSessionCookie');
    if (vxSessionCookie == null){
        vxSessionCookie = vxGetCookieHash();
        vxSetCookie('vxSessionCookie', vxSessionCookie, 0);
    }

    var vxParams = '';
    vxParams += '&site=' + vxSite;
    vxParams += '&type=' + vxType;
    vxParams += '&referrer=' + vxReferrer;
    vxParams += '&location=' + vxLocation;
    vxParams += '&useragent=' + vxUserAgent;
    vxParams += '&sessionid=' + vxSessionCookie;
    vxParams += '&score=' + vxScore;
    vxParams += '&x=' + Math.random();

    var sc = document.createElement('script');
    sc.type = 'text/javascript';
    sc.id = '_vxtlgr';
    sc.src = vxTrafficURL + '?' + vxParams;
    document.getElementsByTagName('head')[0].appendChild(sc);  
}