Reduce JavaScript code. Double event, selector into one
Give those #vtabs a class and it should be simple:

$(function() {
    $('.vtab &gt; ul &gt; li').mouseover(function() {
        var $this = $(this);

        $this.addClass('selected').siblings().removeClass('selected');
        $this.closest('.vtab').find('div').eq($this.index()).hide().siblings().show();
    }).each(function() {
        $(this).find('&gt; ul &gt; li').eq(1).mouseover();
    });
});


Although I'd try turning it into a plugin at this point.