<script>

jQuery.event.add(window, "load", resizeFrame);
jQuery.event.add(window, "resize", resizeFrame);

function resizeFrame()
{
    var h = $(window).height();
    var w = $(window).width();
    jQuery(this).css('height',(h < 1024 || w < 768) ? 500 : 400);
}

jQuery("#list li").click(function(){resizeFrame();});
</script>