Bug with delivery buttons in IE9

I've been testing my website on the different browsers and as expected Internet Explorer is causing a problem...specifically with the delivery buttons (I wish people would stop using Internet explorer - would have so much more time to spend working on other websites ). The buttons don't seem to work at all...see here: s293983206.websitehome.co.uk/elevateshop...hop_shipping_methods

Can anyone help me to try and fix this please?

Thanks in advance

duplicate: www.hikashop.com/forum/install-update/86...u-in-ie9.html#135411