I did the same on the site that I create. I just created different content for each mod and gave each one a unique identifier. So my content looked something like this:
<a id='help'>HELP CONTENT</a>
<a id='about'>ABOUT CONTENT</a>
<a id='options'>OPTIONS CONTENT</a>
<div id='modal_help'>HELP CONTENT</div>
<div id='modal_about'>ABOUT CONTENT</div>
<div id='modal_options'>OPTIONS CONTENT</div>
JS :
$('a').click(function (e) {
e.preventDefault();
$('#modal_' + this.id).modal({OPTIONS});
});
, .