Javascript questions

[puffpio]

I have a set of 2 radio buttons with values "a" and "b"
(ie <input type="radio" name="foo" value="a"> etc etc)

Now I have a javascript function which takes that radio button foo and does a

if (foo.value =="a")
//do this
else if (foo.value == "b")
//do this


the problem is those comparisons are not working and it never gets to either codepath. I tried setting the values to numbers instead of strings..I tried sending in foo.value into the javascript function instead of sending in foo and getting value there.....nothing works...any ideas?

 

[screw3d]

Try:

if (document.<form name>.<radio button name>[0].value=="a") {
//Do something..
}

else if (document.<form name>.<radio button name>[1].value=="b") {
//Do something...
}

Make sure that all your radio buttons has the same name (eg. all your buttons has the declaration name="foo").

 

[puffpio]

yeah but that doesn't tell me which one is selected...i think i have an idae tho..

 

[UCJefe]

You'll have to iterate over the group and check the "checked" property. When you find which one is checked you can get it's value.

var value = null;
if (document.<form name>.<radio button name>.length) {
for (var b = 0; b < document.<form name>.<radio button name>.length; b++)
if (document.<form name>.<radio button name>\[b\].checked)
value = document.<form name>.<radio button name>\[b\].value;
}

Or something like that. And yes, it's kind of a pain. There has got to be an easier way to do this

By the way, long time no talk Pio.