Help using SimpleModal plugin (JQUERY)

Help using SimpleModal plugin (JQUERY)

Hello.
 
I generate dynamically a block using a loop with smarty, my problem is that I need to pass a parameter to the simplemodal windows that the user open when do click on the button or link, and this parameter is different for each loop.
 
  1.  
  2. {for i=0; i = 10; i++}
  3.    <div id='contact-form'>
  4.      CHANGE $i <input type='button' name='contact' value='Demo' class='contact demo'/> or <a href='#' class='contact'>Demo</a>
  5.       </div>
  6. {/for}
 
This is the javascript code that call "solicitar_cambio.html" .... I need to pass a variable to this file, GET or POST, it is the same, but I dont know how to do it.
 
  1. $(document).ready(function () {
     $('#contact-form input.contact, #contact-form a.contact').click(function (e) {
      e.preventDefault();
      // load the contact form using ajax
      $.get("solicitar_cambio.html", function(data){
       // create a modal dialog with the data
       $(data).modal({
        closeHTML: "<a href='#' title='Close' class='modal-close'>x</a>",
        position: ["15%",],
        overlayId: 'contact-overlay',
        containerId: 'contact-container',
        onOpen: contact.open,
        onShow: contact.show,
        onClose: contact.close
       });
      });
     });















  2.  // preload images
     var img = ['cancel.png', 'form_bottom.gif', 'form_top.gif', 'loading.gif', 'send.png'];
     $(img).each(function () {
      var i = new Image();
      i.src = 'img/contact/' + this;
     });
    });





 
How can I do it??
 
Thanks a million