javascript DOM

Javascript DOM "radio checked"

I used the radio check to change the image. Here is my html file. The is the webpage has a boy image. I want to change the image of eye, mouth and nose. As we can see, the image should be changed when I check another radio. I put the "onclick=" to call the javascript function. Each function has two var. "var ~Radio" is for array to get Node from html file. "var ~Image" includes the node from in ..