Radio buttons don't work on firefox please help

[Guest]

hi everyone, i am at a loss as to why my radio buttons won't work properly useing firefox browser. it works fine on I E . it allows me to select and checkout etc. but when i have now tested on different browsers (firefox) it will not allow you to select the radio button. just defaults to the first selection. the products are envelopes which come in different pack sizes and price ie select 10 at Xprice or 25 or 3000 etc. is there a quick fix? please help

 

www.bri1.co.uk

 

thanks

jay