title: Make a form-in-a-div appear on top of content
body: <p>I am sure this has been asked before but my google-fu was not able to find an answer.</p>
  
  <p>I have a page of content and I want it so when a user presses a link or a button a form appears on top of the content.  Once filled out and submitted it would get passed on to the ajax to process it.</p>
  
  <p>I am sure this has been solved before as I've seen it on websites.  Is there a simple way to do this, such as a jquery plugin or another javascript API?  </p>
  
  <p>Or would I have to write the form in the div by hand, overlay it with z-index in css and hide it.  And then when it is called have the form appear? </p>
  
  <p>What's the easiest way to solve this?  Thanks a lot</p>