open a new window with a dynamic url

hello,

someone please help me asap.  i need to finish this project.  i am making a datalist where it brings in a bunch of images which are then clickable. when an image is clicked, i want a new small window to open with the bigger image.  i want the link to dynamically carry the id of the row where the image is stored.  for example:

ID: 12
SmallImage: abc.jpg
BigImage: abc_big.jpg

when abc.jpg is clicked, it opens "press_detail.aspx?ID=12".  press_detail.aspx is a web form where it displays the big image and some additional information.  i know that the following code is for html:

<A onclick="MyWindow=window.open('Press/LV-0405.aspx','MyWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=600,height=650,left=10,top=10'); return false;" href="#">

How can I do this dynamically behind the code just as the following:

aspx file
---------------------
<asp:ImageButton ID="EnlargedPressImage" Runat="server"></asp:ImageButton>

aspx.vb file
----------------------
???????????
WHAT DO I DO HERE?


Some, please guide me in the right direction.  maybe im even going to complete wrong way.

thanks a million.