// PATENT PENDING


function _vs_popup(url, wid, ht){
    var win;
    ht  = ht  || 600;
    wid = wid || 650;

    win = window.open(url, 'VSPOPUP', "toolbar=no,status=no,location=no,menubar=no,"+
        "resizable=yes,scrollbars=yes,height=" + ht + ",width=" + wid, 'yes');
    win.opener = self;
    win.focus();
    win.location = url;
}


var _vsrkpd = {

    R: /(\(?)(\d*)(\d{3})([\s\)\.\-]*)(\d{3})([\s\.\-]*)(\d{4})(\d*)/,

    dbg: document.URL.match(/\?.*_vsdebug/),

    esc: function(txt){
        if(typeof encodeURIComponent=="function"){
            return encodeURIComponent(txt)
        }else{
            return escape(txt)
        }
    },

    unesc: function(txt){
        if(typeof decodeURIComponent=="function"){
            return decodeURIComponent(txt)
        }else{
            return unescape(txt)
        }
    },

    arg: function(p, v){
        if( v ){
            return p + '=' + this.esc(v) + ';';
        }else{
            return '';
        }
    },

    '_debugtxt': '',

    debug: function(m){
        this._debugtxt = this._debugtxt + m + "\n";
    },

    alert: function(m){
        if( this.dbg ){
        if (typeof console != 'undefined' && typeof console.log == 'function') {
            console.log(m);
        } else {
            alert(m);
        }
        }
    },

    set_cookie: function(name, val, exp){
        var ck = name + "=" + this.esc( val ) + ";path=/";
        if(exp){
            var now = new Date();
            exp = new Date( now.getTime + exp );
            ck = ck + ";expires=" + exp.toGMTString();
        }

        document.cookie = ck;
    },

    get_cookie: function(n){
        var c = document.cookie;
        var s = c.indexOf( n + '=' );
        if( s == -1 ) return null;
        if( s && c.charAt(s-1) != ' ' ) return null;
        var e = c.indexOf(';', s);
        if( e == -1 ) e = c.length;

        return this.unesc(c.substring( s + n.length + 1, e ));
    },

    get_number_data: function(){
        var n = 'rkpd_' + vs_account_id;
        var d = this.get_cookie(n);
        var ignck = document.URL.match(/\?.*_vsignck/);

        if( ! vs_account_id ){
            // misconfigured. user did not set the account id
            return ;
        }

        // get kw from cookie
        var kw_cookie = 'kw_' + vs_account_id;
        var prev_kw = this.get_cookie(kw_cookie);

        var new_kw;
        if ('' != '') {
            new_kw = '';

            // if we don't have a keyword cookie, or if the current keyword is
            // different than the old one, set the cookie and re-fetch data
            if ((!prev_kw) || (new_kw && new_kw != prev_kw)) {
                d = null;
                ignck = 1;
                this.set_cookie(kw_cookie, new_kw, 86400 * 365);
            }
        }

        if( d && !ignck ){
            this.debug( "cookie[" + n + "]: " + d);
            eval(d);    // json-cookie
            this.rewrite_document();
        }else{
            // fetch data
            var url = "http://adtrack.voicestar.com/euinc/getnumdata.js?"
                + this.arg('var', '_vsrkpd.d')
                + this.arg('acc', window.vs_account_id)
                + this.arg('cky', n)
                + this.arg('ign', (ignck ? 1 : 0))
                + this.arg('ref', document.referrer)
                + this.arg('url', document.URL);
            if (typeof vs_ref_override != 'undefined' && vs_ref_override) url += this.arg('ref_ovrd', vs_ref_override);
            // if there's no keyword in the url but there was one in the cookie, pass it
            if ((prev_kw) && (!new_kw)) url += this.arg('keyword', prev_kw);

            this.debug( "no cookie[" + n + "] fetch: " + url);
            document.write('<SCR' + 'IPT SRC="' + url + '"></SCR' + 'IPT>');
            // next script will run rewrite_document
        }
    },

    rewrite_number: function(m){
        // (, x, 111, ), 555, -, 1234, x

        var numfull = '' + m[1] + m[2] + m[3] + m[4] + m[5] + m[6] + m[7] + m[8];

        if( m[2] != '' || m[8] != '' ){
            this.debug( "not a number: " + numfull );
            return null;
        }

        var num = '' + m[3] + m[5] + m[7];

        var pd = this.d;
        var rw,lk,na,nb,nc,rwtxt;
        var nr = pd.length;
        var i;
        for(i=0; i<nr; i++){

            if( pd[i].repl == num || ! pd[i].repl ){

                if( pd[i].dont ) break;
                rw = pd[i].num;

                if( rw ){
                    na = rw.substring(0,3);
                    nb = rw.substring(3,6);
                    nc = rw.substring(6);

                    rw = '' + m[1] + m[2] + na + m[4] + nb + m[6] + nc + m[8];
                    this.debug("rewriting: " + numfull + " => " + rw);
                }else{
                    pd[i].ctcp = 1;   // no number, force ctc
                    this.debug("rewriting: " + numfull + " => click-to-call");
                }

                rwtxt = '';
                if( pd[i].txtl ) rwtxt += pd[i].txtl;
                if( rw )         rwtxt += rw;
                if( pd[i].txtr ) rwtxt += pd[i].txtr;

                if( ! rwtxt ){
                    // provide default text if none
                    rwtxt = 'Click-To-Call';
                }

                if( pd[i].ctcp ){
                    lk = 'http://adtrack.voicestar.com/euinc/ctc/callformpop?cmp=' + pd[i].cmp;
                }

                return { text: rwtxt, href: lk, cmp: pd[i].cmp };
            }
        }

        return null;
    },

    rewrite_text_node: function(node){
        var txt = node.nodeValue;
        var m   = this.R.exec(txt);

        if( !m ) return;        // no match

        var rw = this.rewrite_number(m);

        // split into 3 nodes => text, number, text
        var n2 = node.splitText( m.index );
        var n3 = n2.splitText( m[0].length );

        if( ! rw ) return;      // number unchanged

        n2.nodeValue = rw.text;

        if( ! rw.href ) return; // no ctc

        var a = document.createElement('A');
        node.parentNode.replaceChild(a, n2);
        a.appendChild(n2);
        a.href = '#';
        a.className = 'vsctcnumber';
        if( this.dbg ){
            a.title = 'cmp:' + rw.cmp;
        }else{
            a.title = 'Click To Call';
        }
        a.onclick = function(){ _vs_popup( rw.href, 300,200 ); };

        // ...
    },


    replace_all_numbers: function(node){

        if( ! node ) return;

        // skip certain types?
        if( node.nodeName == 'SCRIPT' || node.nodeName == 'STYLE' ) return;

        // handle special spans?
        if( node.className == 'vsnotnumber' ) return;

        // rewrite this node text
        if( node.nodeName == '#text' ){
            this.rewrite_text_node( node );
        }

        // walk children nodes
        var nn, i;

        for(i=0; i<node.childNodes.length; i++){
            nn = node.childNodes.length;
            this.replace_all_numbers( node.childNodes[i] );
            if( node.childNodes.length != nn ){
                // extra nodes were added for CTC link. skip link
                i++;
            }
        }
    },

    getnum_error: function(m){
        this.debug(m);
        if( _vsrkpd._debugtxt ){
            this.alert('DEBUG\n' + _vsrkpd._debugtxt );
        }
    },

    rewrite_document: function(){
        var o = window.onload;
        window.onload = function(){
            _vsrkpd.replace_all_numbers(document);
            if( _vsrkpd._debugtxt ){
                _vsrkpd.alert('DEBUG\n' + _vsrkpd._debugtxt );
            }
            if (o)(o)();
            //)  ..  (
            //( ---- )
        };
    }
};

_vsrkpd.get_number_data();