var Try = {
  these: function() {
    var returnValue;

    for (var i = 0; i < arguments.length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) {}
    }

    return returnValue;
  }
}

var xmlhttp =  Try.these(
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')},
      function() {return new XMLHttpRequest()}
    ) || false;

function ajax_debug(xmlhttp) {
	window.alert(xmlhttp.readyState+' '+xmlhttp.status);
}

if (!Array.prototype.push) Array.prototype.push = function() {
    for (var i=0; i<arguments.length; i++) this[this.length] = arguments[i];
    return this.length;
}

function array_find(a, value, start) {
    start = start || 0;
    for (var i=start; i< a.length; i++)
        if (a[i]==value)
            return i;
    return -1;
}

function map(list, func) {
    var result = [];
    func = func || function(v) {return v};
    for (var i=0; i < list.length; i++) result.push(func(list[i], i, list));
    return result;
}

function filter(list, func) {
    var result = [];
    func = func || function(v) {return v};
    map(list, function(v) { if (func(v)) result.push(v) } );
    return result;
}

function isUndefined(v) {
    var undef;
    return v===undef;
}

function getElem(elem) {
    if (document.getElementById) {
        if (typeof elem == "string") {
            elem = document.getElementById(elem);
            if (elem===null) throw 'cannot get element: element does not exist';
        } else if (typeof elem != "object") {
            throw 'cannot get element: invalid datatype';
        }
    } else throw 'cannot get element: unsupported DOM';
    return elem;
}

function hasClass(elem, className) {
    class_names = getElem(elem).className.split(' ');
    return array_find(class_names, className)!==-1
    
    //return getElem(elem).className.split(' ').has(className);
}

function getElementsByClass(className, tagName, parentNode) {
    parentNode = !isUndefined(parentNode)? getElem(parentNode) : document;
    if (isUndefined(tagName)) tagName = '*';
    return filter(parentNode.getElementsByTagName(tagName),
        function(elem) { return hasClass(elem, className) });
}

function getMyHTML(serverPage, objID, linkid, linklabel) {
  var obj = document.getElementById(objID);
  var bg = obj.style.background;
  xmlhttp.open("GET", serverPage);
  xmlhttp.onreadystatechange = function() {
    if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
      var anchor = document.getElementById(linkid);
      anchor.innerHTML = linklabel;
      obj.innerHTML = '';
      obj.style.visibility = "hidden";
      obj.innerHTML = xmlhttp.responseText;
      
      var cxrand = Math.floor(Math.random() * 10000000);
      
      tabcontent = getElementsByClass("tabcontent", "div", "tabs");

      tabcontent = tabcontent[0];
      
      tabid = tabcontent.id;
      
      tracking_code = "<img src=\"http://coxnetmasterglobal.112.2o7.net/b/ss/coxnetmasterglobal/1/G.7-PD-R/s"+cxrand+"?pe=lnk_o&pev2=ajc_hp_"+tabid+"&c25=coxajc\" height=\"1\" width=\"1\" border=\"0\" class=\"tabtrackingbug\">";
      obj.innerHTML = obj.innerHTML + tracking_code;
      
      clearer_div = "<div class=\"clearer\">&nbsp;</div>";
      obj.innerHTML = obj.innerHTML + clearer_div;
      
      obj.style.visibility = "visible";
	  obj.ajax_content_loaded = true;
    }
  }
  xmlhttp.send(null);
}

__tabs = new Array();

function tabclick() {
    label = this.innerHTML
    this.innerHTML = "Please wait..."
    off_all_tabs();
    on_tab_from_link(this);
    fetch_content_from_link(this, label);
    return false;
}

function fetch_content_from_link(alink, label) {
    getMyHTML(alink.href + "?no_owrap=True", "tabs", alink.id, label);
}

function on_tab_from_link(alink) {
    linkid = alink.id;
    tabid = alink.id.replace("_link", '');
    
    thetab = document.getElementById(tabid);
    thetab.className = thetab.className + "current";
}

function off_all_tabs() {
    for(var i = 0; i < __tabs.length; i++) {
        atab = __tabs[i];
        atab.className = atab.className.replace("current", '');
    }
}

function switch_tab(tablinkid) {
    tablink = document.getElementById(tablinkid);
    tablink.onclick();
}

var tabrules_init = {
    '#tablinks li a': function(el) {
        if(xmlhttp) {
            el.onclick = tabclick;
        }
    },
    "#tablinks li": function(el) {
        __tabs[__tabs.length] = el;
    }
};

Behaviour.register(tabrules_init);