function simplePreload(args)
{
    document.imageArray = new Array(args.length);
    for(var i=0; i<args.length; i++)
    {
        document.imageArray[i] = new Image;
        document.imageArray[i].src = args[i];
    }
}

var preloadArgs = new Array('../res/img/menu_home_active.gif', '../res/img/menu_who_active.gif', '../res/img/menu_what_active.gif', '../res/img/menu_how_active.gif', '../res/img/right_menu_active_field.gif');
simplePreload(preloadArgs);