Magento 1.9 Banner click redirect

when i add a new banner from the admin page, it shows a small button in the banner from the front end view and when the button is clicked it redirects them to a certain link.

i want to remove this button and instead of click on the button to redirect i want it to be on the image.

Current code in the banner configuration:

< ?php if($banner->getUrl()): ?>
                                < ?php echo $this->__('Shop Now');?>
                            < ?php endif; ?>

thank you