var count = 0;

$(document).ready(function () {

    $('#mnuPortfolio').click(function () { ShowTab('tabPortfolio'); });
    $('#mnuAbout').click(function () { ShowTab('tabAbout'); });
    $('#mnuPricing').click(function () { ShowTab('tabPricing'); });

    ShowTab('tabAbout');

    $("#left").click(function () { ShowPrevious(); });
     $("#right").click(function () { ShowNext(); });
});

function ShowTab(tabName) {

    $("#tabPortfolio").hide();
    $("#tabAbout").hide();
    $("#tabPricing").hide();

    $("#" + tabName).fadeIn('1000');

}

function ShowPrevious() {
    if (count > 0) {
        var $work = $(".work");
        $work.hide();
        $($work[--count]).show();
    }
    
}

function ShowNext() {
    var $work = $(".work");
    if (count < $work.length - 1) {
        $work.hide();
        $($work[++count]).show();
    }
    
}

function ShowWork(index) {

}