var tab_news;
		        var tab_reviews;
		        var tab_updates;
		        var tab_other;
		        
		        var div_news;
		        var div_reviews;
		        var div_updates;
		        var div_other;
		        

var selected = "selected";
var not_selected = "not_selected";

function DeselectTabs() {
    tab_news.className = not_selected;
    tab_reviews.className = not_selected;
    tab_updates.className = not_selected;
    tab_other.className = not_selected;
}

function SelectTab(tab) {
    tab.className = selected;
}

function GoToTab(tab) {
    DeselectTabs();
    SelectTab(tab);
}

function GoToNews() {
	GoToTab(tab_news);
	$(div_news).fadeIn(500);
    div_reviews.style.display = "none";
    div_updates.style.display = "none";
	div_other.style.display = "none";
    return false;
}
function GoToReviews() {
    GoToTab(tab_reviews);
    div_news.style.display = "none";
    $(div_reviews).fadeIn(500);
    div_updates.style.display = "none";
    div_other.style.display = "none";
    return false;
}

function GoToUpdates() {
    GoToTab(tab_updates);
    div_news.style.display = "none";
    div_reviews.style.display = "none";
    $(div_updates).fadeIn(500);
    div_other.style.display = "none";
    return false;
}
function GoToOther() {
    GoToTab(tab_other);
    div_news.style.display = "none";
    div_reviews.style.display = "none";
    div_updates.style.display = "none";
    $(div_other).fadeIn(500);

    return false;
}

function SetInitalParameters() {
    tab_news = document.getElementById("tab_news");
    tab_reviews = document.getElementById("tab_reviews");
    tab_updates = document.getElementById("tab_updates");
    tab_other = document.getElementById("tab_other");

    div_news = document.getElementById("divNewsContent");
    div_reviews = document.getElementById("divReviewsContent");
    div_updates = document.getElementById("divUpdatesContent");
    div_other = document.getElementById("divOtherContent");

    GoToReviews();
}