I want to have four "VCR" buttons lined up on a toolbar like below:

I want the "play" button to perform ajaxSubmit (Form plugin) submitting a bunch of fields on the form in which these buttons are contained.  This will start a simulation based on the passed in parameters.

I want the other bottons to send signals to the server to control the simulation.  They don't really need to send parameters.  I presume I can just do this with something like jQuery.post().

Here's my problem.   All of the buttons in my toolbar just submit the form, presumably because they are buttons declared within the same <form></form>. (I copied the code for these buttons directly from the jQuery UI demo toolbar.)

My initial thought was to use the Form plugin somehow detect which button was clicked or something like that, but I can't figure out how to do that.

How do I make the play button submit the form, while the other buttons do different jQuery.post() calls?  Or is there a better way of achieving the result I want?

Thanks