As the author of this tutorial says, and i totally agree with him, there are times that out of the box solutions for modal windows are not working as they should. Especially when you have to combine scripts things can get really messy. So over at sohtanaka.com you can find a really good tutorial on how to create your own inline modal windows with css and jquery.
jankoatwarpspeed.com released an excellent tutorial on how to create an alternative drop down menu using only CSS and jQuery. HTML’s Select element is really useful but impossible to style it the way you want (Hello IE). The other drawback is that it only supports text. With Janko’s solution you can use images too.
“SlickMap CSS is a simple stylesheet for displaying finished sitemaps directly from HTML unordered list navigation. It’s suitable for most web sites – accommodating up to three levels of page navigation and additional utility links – and can easily be customized to meet your own individual needs, branding, or style preferences.”