Does anyone know how I can show/hide content  based on a passed-in querystring value?

I'm passing a QueryString value into a page (ClassID).  Based on the value of ClassID, I'd like to show/hide a series of images.  Can someone tell me how to show/hide images within a HTML/Text module OR I could create 4 seperate modules, one with each image button then show/hide entire modules.

Any help would be much appreciated!

Thanks!

I'm not having any luck putting this together. This is my first time working with JS and JQUERY in the DNN environment. I put the attached JS code you sent me into the Page's Header section and created a div tag with an ID of "class1_div"  inside my module.  inside that div tag I put a button that, in theory, should be shown or hidden based on the passed in query string value.

Mark,

Thanks for your note.  I'm trying to keep this simple and not get into developing modules.  I just thought there was a simple way through HTML to read the query string value being passed in and show/hide content on my page.  I can't seem to find any examples of doing it.