$(document).ready(function(){
$("#submenu img.arrow").click(function(){
$("span.headMenu").removeClass('active');
sub_menu = $(this).parent().parent().find("div.sub_menu");
if(sub_menu.css('display')=="block"){
$(this).parent().removeClass("active");
sub_menu.hide();
$(this).attr('src','http://myjobstreet.jobstreet.com/myjs11-static/default/common/image/arrow_hover.gif');
}else{
$(this).parent().addClass("active");
sub_menu.fadeIn();
$(this).attr('src','http://myjobstreet.jobstreet.com/myjs11-static/default/common/image/arrow_select.gif');
}
$("div.sub_menu:visible").not(sub_menu).hide();
...
