Validating group of radio buttons.

rupen · September 18th, 2006, 02:24 AM

i m having around 15 group of radio buttons on my page and they all are mendatory.

i have use similar coding as below site has given:
http://www.codeave.com/javascript/code.asp?u_log=7049

but since this is an online q'naire, and this code works for a single group of radio buttons, what i want is that there should be common radio button checknig function to which we can pass a name of radio button group,
i tried to modify the code a bit but it is not working....any idea?

Rupen Anjaria.:)
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We CAN'T avoid problems, but can solve it.

joefawcett · September 18th, 2006, 02:44 AM

As you can't uncheck a radio button without checking a different one then if you make one checked to begin with then it should mean the groups are all mandatory.

If you want to check with code:

Code:

function getCheckedControl(groupName)
{
  var col = document.getElementsByName(groupName);
  for (var i = 0; i < col.length; i++)
  {
    if (col[i].checked) return col[i];
  }
  return null;
}

If the code above returns null when passed the group name then no option is chosen.

--

Joe (Microsoft MVP - XML)