<div>
Try this,<br />

<pre><code id="code-20-41755471-1">&lt;script language=&quot;JavaScript&quot;&gt;
function oneCheckboxChecked(form){
for(f=0;f&lt;form.length;f++){
if(form[f].type ==&quot;radio&quot;) 
if(form[f].checked){
return true;
}
}
alert(&quot;Select at least one User&quot;);
return false;
}
&lt;/script&gt;

&lt;form id=&quot;form1&quot;&gt;
&lt;input type=&quot;radio&quot; name=&quot;gender&quot; value=&quot;male&quot; &gt; Male&lt;br&gt;
  &lt;input type=&quot;radio&quot; name=&quot;gender&quot; value=&quot;female&quot;&gt; Female&lt;br&gt;
  &lt;input type=&quot;radio&quot; name=&quot;gender&quot; value=&quot;other&quot;&gt; Other

&lt;input type=&quot;button&quot; name=&quot;button&quot; value=&quot;Click&quot; onclick=&quot;oneCheckboxChecked(document.getElementById('form1'))&quot;&gt; &lt;br&gt;
&lt;/form&gt;</code></pre>
</div>


Try this,


<script language="JavaScript">
function oneCheckboxChecked(form){
for(f=0;f<form.length;f++){
if(form[f].type =="radio") 
if(form[f].checked){
return true;
}
}
alert("Select at least one User");
return false;
}
</script>

<form id="form1">
<input type="radio" name="gender" value="male" > Male<br>
  <input type="radio" name="gender" value="female"> Female<br>
  <input type="radio" name="gender" value="other"> Other

<input type="button" name="button" value="Click" onclick="oneCheckboxChecked(document.getElementById('form1'))"> <br>
</form>

<div>
Can I apply it to onsubmit for the form instead ?
</div>


Can I apply it to onsubmit for the form instead ?

<div>
<div class="content wysiwyg-content">
I have the javascript below to make sure a user checks at least one checkbox. <br />
Seems to work fine for checkboxes but not for radio buttons. I need help tweaking it so that it works. <br />
<br />
I have a repeated region displaying names, they all have ids, I need the user to select one of the radio buttons. <br />
<br />

<pre><code id="code-10-28963261-1">&lt;script language=&quot;JavaScript&quot;&gt;
function oneCheckboxChecked(form){
for(f=0;f&lt;form.length;f++){
if(form[f].type !=&quot;checkbox&quot;) continue;
if(form[f].checked){
return true;
}
}
alert(&quot;Select at least one User&quot;);{
return false;
}
}
&lt;/script&gt;</code></pre>
<br />
A
</div>
</div>


I have the javascript below to make sure a user checks at least one checkbox. 
Seems to work fine for checkboxes but not for radio buttons. I need help tweaking it so that it works. 

I have a repeated region displaying names, they all have ids, I need the user to select one of the radio buttons. 

(CODE)

A

Select one javascript for radio buttons

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

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