jquery popup problem -

i nobe jquery..what trying when click on register button on index want popup include register.php on upper-right corner have been trying whole day cant firgure out tried use include "register.php" in ![enter image description here][1]

i don't think want popup, want hidden form to display in upper right corner post off register.php

<div id = "registerform" style = "display: none; position: absolute; top: 0; right: 0; z-index: 9000">   <form action = "register.php" method = "post">      <!-- registration fields here -->   </form> </div> 

and make display button (using jquery):

<input type = "button" onclick = "$('#registerform').show();" value = "register awesome site!"/>