a little change in my navbar

Hey guys,

does anyone can give me hand with the following? I My navbar contains bars/clubs as a category and then monday, tuesday, … ,sunday as subcategories. Right now bars/clubs referres my visitors to a site that contains all posts (from all subcategories) in a random order. How can I unlink bars/clubs so my visitors wouldn be able to click on that anymore and instead use monday to friday?

The code:

<div id="subnavbar">

	<ul id="subnav">
		<?php wp_list_categories('sort_column=name&title_li=&depth=4'); ?

Hope someone has a hint. If you need further code let me know.

Thank you so much guys!