following is a good example on how to do that -

at first add tinybox.js script reference along with jquery
script reference too.you can download tinybox script file
from tinybox website.if you did not find contact me.

then in script section add -

$(document).ready(function () {

var content2 = "<img src='../content/content.jpg' width='251px' height='266px' alt='securityCode' />";
T$('testclick1').onclick = function () { TINY.box.show(content2, 0, 0, 0, 1) }

});

add the following html codes in page -

<div id="testclick1" style="color: #3278f9; cursor:pointer;cursor:hand;">

<b>where is my card code?</b>

</div>

when clicked in above text tiny box is shown as a popup with content..