$(document).ready(function () {

    //When page loads...
    $(".tab-sk-tab-li1").hide(); //Hide all content
    $(".tab-sk-act00").addClass("tab-sk-act").show(); //Activate first tab
    $("#tab-sk-tab1").show(); //Show first tab content

    //On Click Event
    $(".tab-sk-1 li").click(function () {

        $(".tab-sk-1 li").removeClass("tab-sk-act"); //Remove any "active" class

        $(this).addClass("tab-sk-act"); //Add "active" class to selected tab

        $(".tab-sk-tab-li1").hide(); //Hide all tab content

        var activeTab = $(this).find("a").attr("href"); //Find the href attribute value to identify the active tab + content
        $(activeTab).fadeIn(700); //Fade in the active ID content    

        return false;
    });


});