How to change navigation menu class to selected, when you have clicked on it?

It works fine, when I'm use --> ul li and a tag without span

See it on action: http://jsfiddle.net/diskzzokejs/VkKJF/3/

Bouth of examples works fine, but in span class="header_item_before" and span class="header_item_after" I have a images. H开发者_运维技巧ow to keep images on change? And last tab bottom corner must be without image.

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Change this:

$("ul li:last").addClass(function() {
                 return "last_tab selected";
               });

to this:

$(".tab_header_item").removeClass("selected");
$(this).closest(".tab_header_item").addClass("selected");

Your updated fiddle.

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This is what you need:

$(this).parents('li').addClass('selected').siblings().removeClass('selected');

http://jsfiddle.net/AlienWebguy/VkKJF/6/