js gets radio button data_javascript skills

Maybe this is a simple question, but I ignored the radio buttons when I was learning the program. This leads to a vacancy in his data transfer method. With the help of Aaoao, I realized the data acquisition of the age selection form below, and the test was successful only under IE. Test the effect of this program first.

Copy code The code is as follows:

1-10 years old
< ;input type="radio" name="radio" value="11 years old">11 years old
12-120 years old

The following is js to get data

Copy code The code is as follows:

also wants to pass data to another form

Copy code The code is as follows:

< ;input type="text" name="textfield">

References
js:http://www.blueidea.com/tech/ web/2006/3567_8.asp
form:http://www.netvtm.com/w3s/html/html-forms.html