/**
 * Display a single list item at a time assuming your container hides the overflow.
 * 
 * @author  Fred Ghosn <fredghosn@gmail.com>
 */
function loadMenu(id,el){
  var menu = $("#menuImages ul"), item = $("#" + id);
  $(el).parent().addClass("selected").siblings().removeClass("selected");
  menu.animate({marginLeft:-(menu.children(">li").index(item.get(0))*parseInt(item.css("width")))});
}