Problem with radio button value

In my application i wanted to check if the radio button Yes or No is selected.




While i am using follwowing code to acess radio button value:




When i try to acesss the radio button value i dont get any values. Am i missing something?

This is wrong

# var elem= document.getElementById('uploadImage');
# var radioLength = elem.length;

You are looking at a TR and than looking at its length. Add alert statements and you will see it is just a div element, you are not reading form elements.

Why don't you give the radio buttons an id and reference them directly? Other option is to use getElementsByTagName with your getElementById statement.

Eric

<tr id="uploadImage">

Well i m using a id as given above.Check my code at top left.


Regards,
DP

if(elem[i].checked) {
var radioButton =elem[i].value;
Most likely the problem is occurring due the above line, you have declared the variable called radioButton within if construct, however thats being accessed outside the scope.
}

I know you have an id, that id is WRONG. You are referencing the tr, you are NOT referencing form elements. Use an alert statement and you will see what you are doing in your loop. It is nothing close to what you think is happening.

Eric

Well i am really confused.

Can you please elaborate a bit more.'


Thanks,
DP

#1 is referencing a tr tag. It is just an element
#2 is looking at the length of a tr tag

#2 has nothing to do with form elements.

Some reason you think that

document.getElementById('uploadImage') is the same thing as document.formName.elements which they are not even close.

As I stated before you want to use getElementsByTagName. I will write it out for you:


Eric

Whats that "input"?