function AddEventListener(element, eventType, handler, capture)
{
    if (element.addEventListener)
        element.addEventListener(eventType, handler, capture);
    else if (element.attachEvent)
        element.attachEvent("on" + eventType, handler);
}

function chkObject(inParent,theVal) {
if(inParent){
if (window.opener.document.getElementById(theVal) != null) {
return true;
} else {
return false;
}
}else{
if (document.getElementById(theVal) != null) {
return true;
} else {
return false;
}
}
}

function externalLinks() {
  if (!document.getElementsByTagName && document.getElementById) return;

  var anchors = document.getElementsByTagName("a");

  for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
       anchor.target = "_blank";
 }
}


function FeaturedSwitch(id) {

    if (id == '1') {

         document.getElementById('featnews1').style.display = "block";
         document.getElementById('featnews2').style.display = "none";
         document.getElementById('featnews3').style.display = "none";
         document.getElementById('featnews4').style.display = "none";
         document.getElementById('featnews5').style.display = "none";

         document.getElementById('featswitch1').className = "featswitchselected";
         document.getElementById('featswitch2').className = "";
         document.getElementById('featswitch3').className = "";
         document.getElementById('featswitch4').className = "";
         document.getElementById('featswitch5').className = "";

         i = 1;

    } else if (id == '2')  {

         document.getElementById('featnews1').style.display = "none";
         document.getElementById('featnews2').style.display = "block";
         document.getElementById('featnews3').style.display = "none";
         document.getElementById('featnews4').style.display = "none";
         document.getElementById('featnews5').style.display = "none";

         document.getElementById('featswitch1').className = "";
         document.getElementById('featswitch2').className = "featswitchselected";
         document.getElementById('featswitch3').className = "";
         document.getElementById('featswitch4').className = "";
         document.getElementById('featswitch5').className = "";

         i = 2;

    } else if (id == '3')  {

         document.getElementById('featnews1').style.display = "none";
         document.getElementById('featnews2').style.display = "none";
         document.getElementById('featnews3').style.display = "block";
         document.getElementById('featnews4').style.display = "none";
         document.getElementById('featnews5').style.display = "none";

         document.getElementById('featswitch1').className = "";
         document.getElementById('featswitch2').className = "";
         document.getElementById('featswitch3').className = "featswitchselected";
         document.getElementById('featswitch4').className = "";
         document.getElementById('featswitch5').className = "";

         i = 3;

    } else if (id == '4')  {

         document.getElementById('featnews1').style.display = "none";
         document.getElementById('featnews2').style.display = "none";
         document.getElementById('featnews3').style.display = "none";
         document.getElementById('featnews4').style.display = "block";
         document.getElementById('featnews5').style.display = "none";

         document.getElementById('featswitch1').className = "";
         document.getElementById('featswitch2').className = "";
         document.getElementById('featswitch3').className = "";
         document.getElementById('featswitch4').className = "featswitchselected";
         document.getElementById('featswitch5').className = "";

         i = 4;

    } else if (id == '5')  {

         document.getElementById('featnews1').style.display = "none";
         document.getElementById('featnews2').style.display = "none";
         document.getElementById('featnews3').style.display = "none";
         document.getElementById('featnews4').style.display = "none";
         document.getElementById('featnews5').style.display = "block";

         document.getElementById('featswitch1').className = "";
         document.getElementById('featswitch2').className = "";
         document.getElementById('featswitch3').className = "";
         document.getElementById('featswitch4').className = "";
         document.getElementById('featswitch5').className = "featswitchselected";

         i = 5;

    }

}

    var i=1;

    function FeaturedAutoSwitcher () {

        FeaturedSwitch(i);

        i = i + 1;

        if(i==6) {
            i=1;
        }

    }

window.onload = function()
{


    if (document.getElementById("releasenotes_switch")) {

        AddEventListener(document.getElementById("releasenotes_switch"), "click", function(e)
        {

            if (document.getElementById('releasenotes').style.display == ''||document.getElementById('releasenotes').style.display == "none") {
              document.getElementById('releasenotes').style.display = "block";
              this.innerHTML = "Ocultar release notes";
            } else {
                document.getElementById('releasenotes').style.display = "none";
                this.innerHTML = "Mostrar release notes";
            }

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }


    if (document.getElementById("featswitch1")) {

        AddEventListener(document.getElementById("featswitch1"), "click", function(e)
        {

            FeaturedSwitch('1');

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }


    if (document.getElementById("featswitch2")) {

        AddEventListener(document.getElementById("featswitch2"), "click", function(e)
        {

            FeaturedSwitch('2');

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }


    if (document.getElementById("featswitch3")) {

        AddEventListener(document.getElementById("featswitch3"), "click", function(e)
        {

            FeaturedSwitch('3');

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }


    if (document.getElementById("featswitch4")) {

        AddEventListener(document.getElementById("featswitch4"), "click", function(e)
        {

            FeaturedSwitch('4');

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }


    if (document.getElementById("featswitch5")) {

        AddEventListener(document.getElementById("featswitch5"), "click", function(e)
        {

            FeaturedSwitch('5');

            if (e.preventDefault) e.preventDefault();
            else e.returnResult = false;
            if (e.stopPropagation) e.stopPropagation();
            else e.cancelBubble = true;
        }, false);

    }

    setInterval("FeaturedAutoSwitcher();",4000);

    externalLinks();

};