$(document).ready(function(){
    selected_nav = $('#nav').find('.selected');
    $(selected_nav).prepend('<img id="topNavShade_left" style="z-index:99999;position:absolute;left:-5px;top:1px;" src="resources/media/nav_selected_shade_left.gif"/>');
    $(selected_nav).append('<img id=" id="topNavShade_left"" style="position:absolute;right:-5px;top:1px;" src="resources/media/nav_selected_shade_right.gif"/>');
    $('#nav a:last #topNavShade_left').css('display','none');
    
    $('a.external').attr('target','_blank');
});