function addMega() {
    $('.hovering').removeClass("hovering");
    $(this).addClass("hovering");
    //    alert(this.Id + ": " + this.className);
}

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

var megaConfig = { interval: 125, sensitivity: 125, over: addMega, timeout: 400, out: removeMega };

$(document).ready(function() {
    $(".top_menuItem").hoverIntent(megaConfig);
});