var $items = $('#vtab>ul>li');
$items.mouseover(function() {
    $items.removeClass('selected');
    $(this).addClass('selected');

    var index = $items.index($(this));
    $('#vtab>div').hide().eq(index).show();
}).eq(1).mouseover();


var mountOverlay = function() {
	wHeight = $(window).height();
	sHeight = 480;
	wWidth  = $(window).width();
	sWidth  = 640;
	
	$("#overlayShape").css("top",  parseInt((wHeight- sHeight)/2+$(window).scrollTop()));
	$("#overlayShape").css("left", parseInt((wWidth - sWidth)/2));
    
	setTimeout('mountOverlay()', 100);
}

$(document).ready(function() { 
    mountOverlay();
    $("#overlayShape").show();
});