url question

I have a php script that browses a database table. You can page through the database table by clicking these links: http://localhost/browse.php?action=first http://localhost/browse.php?action=prev http://localhost/browse.php?action=next http://localhost/browse.php?action=last When you click the 'action=next' link, the script displays the next X records (the script remembers its position within the table). The script also displays a link to a jpeg of the item described in the database table. For example: http://localhost/images/123456.jpg If the user clicks the image link, the browser displays the jpeg. Suppose the user clicks the 'action=next' link, and then clicks an image link. The browser displays the jpeg. When the user clicks the back button, the browser executes the previous link (ie. the 'action=next' link) which displays the next page of database records. I want the browser to NOT display the next page of data. I want the browser to stay on the page that contains the link to the jpeg the user clicked. How can I prevent the previous link from being executed when the user clicks the back button? Thanks - Jim