$(function() {
    //Get our elements for faster access and set overlay width
    var div = $('div.sc_menu'),
               ul = $('ul.sc_menu'),
    // unordered list's left margin
               ulPadding = 15;

    //Get menu width
    var divWidth = div.width();

    //Remove scrollbars
    div.css({ overflow: 'hidden' });

    //Find last image container
    var lastLi = ul.find('li:last-child');

    //When user moves mouse over menu
    div.mousemove(function(e) {

        //As images are loaded ul width increases,
        //so we recalculate it each time
        var ulWidth = lastLi[0].offsetLeft + lastLi.outerWidth() + ulPadding;

        var left = (e.pageX - div.offset().left) * (ulWidth - divWidth) / divWidth;
        div.scrollLeft(left);
    });

    function addMega() {
        $(this).addClass("hovering");
    }

    function removeMega() {
        $(this).removeClass("hovering");
    }

    var megaConfig = {
        interval: 400,
        sensitivity: 4,
        over: addMega,
        timeout: 400,
        out: removeMega
    };
    $("li.mega").hoverIntent(megaConfig)
});