Assigning numerical values to radio buttons

taff posted this at 19:54 — 11th January 2002.

They have: 956 posts

Joined: Jun 2001

I'm trying to put together a simple quiz script. Well, simple to those who know what they are doing perhaps.

Each question has 3 options worth 0, 1, 10 points respectively. I'm using radio buttons like so (html stripped):

input type="radio" name="q1" value="0"
input type="radio" name="q1" value="1"
input type="radio" name="q1" value="10"

input type="radio" name="q2" value="0"
input type="radio" name="q2" value="1"
input type="radio" name="q2" value="10"

etc

At the end I call a function to tally q1+q2+etc (form.score.value = form.q1.value + form.q2.value + etc) and display the score. Unfortunately, The score is always "NaN" which I assume means not a number.

Can you not assign a numeric value to a radio button? Does it have to be converted? Is it a simple syntax issue?

Any ideas on this? I kind of left this part of the project to the end (duh!) and am now butting my head against a deadline.

.....

taff posted this at 20:57 — 11th January 2002.

They have: 956 posts

Joined: Jun 2001

never mind!

figured it out

yabber posted this at 21:12 — 11th January 2002.

They have: 93 posts

Joined: Dec 2001

what was the solution ?
I was wondering the same thing yesterday

Mika

taff posted this at 21:33 — 11th January 2002.

They have: 956 posts

Joined: Jun 2001

2 things actually:

1) multiply each variable by 1 to make it numeric.

2) But then, it still wouldn't work. I suspect that a Radio button's value must be boolean. So I added a hidden field for each question (a1,a2,etc) and assigned the value to it using an onClick event

form.a1.value*1 + form.a2.value*1 + etc

seems to work like a charm.

.....