javascript calculation using jsfiddle -

i created script when can buy shirts, pants, etc.... problem having when run script on website works perfectly. however, when run using jsfiddle, doesn't work @ all. don't understand dong wrong , have other scripts on fiddle work fine. appreciate if can take @ , tell me made mistake. thank you.

js fiddle - http://jsfiddle.net/rissandimo/lo6jsuvu/

my website - http://omidnassir.com/programs/shirts/shirts.html

it working now.

problem jsfiddle setting.

i set no wrap - body. setting different , on load @ time element not present js function not bind @ time.