Radio Button Help please

[hopper]

I'm sure this is an easy one, but I need some help.
I need to find out if any one radio button in a group has been checked where the number of radio buttons isn't known until run time. I was using

if (form.radio1[0].checked = true || form.radio1[1].checked = true...)

but now the number of radio buttons in radio1 is dynamic.

Any ideas?

Thanks,

Scott

 

[SashiRaveendran]

for (i=0;i<document.formName.radio1.length;i++) {
if (!document.formName.radio1.checked)
{
// a checkbox is unchecked
break;
}
}

 

[SashiRaveendran]

for (i=0;i<document.formName.radio1.length;i++) {
if (document.formName.radio1.checked)
{
// a checkbox is checked
break;
}
}

 

[trollacious]

Using sjravee's idea, this is a function that will return true if any of the radio buttons is checked, and false if none of them are:

function checkradiobuttons(radioarray)
{
for (var ri=0;ri<radioarray.length;ri++)
{
if (radioarray[ri].checked==true) return true;
}
return false;
}

 

[hopper]

That's perfect!!!!

Thank you!

Scott

 

[jimendeath]

Hi !

Since form.radio1 is an ARRAY maybe U can use &quot;form.radio1.length&quot; to guess how many elements there are.

Hope this helps