$(document).ready(function() {

    $("ul#menu li").hover(function() { //Hover over event on list item
        $(this).css({ 'background': '#1376c9' }); //Add background color and image on hovered list item
        $(this).find("span").show(); //Show the subnav
    }, function() { //on hover out...
        $(this).css({ 'background': 'none' }); //Ditch the background
        $(this).find("span").hide(); //Hide the subnav
    });

});