Length of a radio group being returned as undefined when there is only one radio button in the group

Posted on 2008-10-09
Last Modified: 2008-10-10
The radio.length value returns 'undefined' when there is only one value in a radio group.  

I know it is not normal to have just one value in the radio group, but I find myself in that situation where the number of radio buttons in the group depends on the output of a query.

Anyone knows how I can work around this issue.

<script type="text/javascript">
	function getRadioValue(radio) {
	    for(i=0; i<radio.length; i++) {
	        if(radio[i].checked) return radio[i].value;
	    return 0;

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Question by:onaled777
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LVL 82

Accepted Solution

hielo earned 250 total points
ID: 22683753
function getRadioValue(radio) {
   if("undefined"==typeof(radio.length) )
      return radio.value;
          for(i=0; i
LVL 82

Expert Comment

ID: 22684867
glad to help

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