Displaying a popup over a drop down in IE6

So here is one thing that no matter how many times I solve it, it always seems to bite me over and over again. In IE6, if you attempt to display a dynamic overlay over the page (i.e. calendar, lightbox, etc) any drop down elements will show through that overlay. I finally found a working solution somewhere (I forget exactly where, so please forgive me if I do not give credit where credit is due). You need to have an iframe that you place underneath the dynamic element you would like to display, moving it underneath the element when you display it.

Here is the code for the iframe:





Little bit of CSS to go with it:



And here is the code that you can invoke when you hide/show the dynamic element:



This has made my day more than a couple of times.