<div>
try customize something like this: 

<pre><code class="code-10 nolinks" id="code-208793">&lt;html&gt;
&lt;head&gt;
&lt;script type=&quot;text/javascript&quot;&gt;
	function getCheckCount(object) {
		var i = object.length;
		var cnt = 0;
		
		for (var j=0; j&lt;i; j++) {
			if (object[j].checked) {
				cnt++;			
			}
		}
		return cnt;
	}
	function getRadioSelectedIndex(object) {
		var i = object.length;
		for (var j=0; j&lt;i; j++) {
			if (object[j].checked) {
				return j;			
			}
		}
		return -1;
	}
	
	function validate(frm) {
		if (getRadioSelectedIndex(frm.radio1)==-1) {
			alert(&quot;Please select a radio button&quot;);
			frm.radio1[0].focus();
			return false;
		}
		if (getCheckCount(frm.check1)==0) {
			alert(&quot;Please select at least a checkbox&quot;);
			frm.check1[0].focus();
			return false;
		}
		
		//change to true to submit
		return false;
	}
&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;form action=&quot;&quot; method=&quot;post&quot; name=&quot;form1&quot; onSubmit=&quot;return validate(this)&quot;&gt;
 &lt;p&gt;Radio&lt;/p&gt;
 &lt;p&gt;
 &lt;input name=&quot;radio1&quot; type=&quot;radio&quot; value=&quot;1&quot;&gt;
 1
 &lt;input name=&quot;radio1&quot; type=&quot;radio&quot; value=&quot;2&quot;&gt;
 2
 &lt;input name=&quot;radio1&quot; type=&quot;radio&quot; value=&quot;3&quot;&gt;
 3
 &lt;input name=&quot;radio1&quot; type=&quot;radio&quot; value=&quot;4&quot;&gt; 
 4
 &lt;input name=&quot;radio1&quot; type=&quot;radio&quot; value=&quot;5&quot;&gt;
5 &lt;/p&gt;
 &lt;p&gt;
 &lt;input name=&quot;check1&quot; type=&quot;checkbox&quot; id=&quot;check1&quot; value=&quot;a&quot;&gt;
 &lt;input name=&quot;check1&quot; type=&quot;checkbox&quot; id=&quot;check1&quot; value=&quot;b&quot;&gt;
 &lt;input name=&quot;check1&quot; type=&quot;checkbox&quot; id=&quot;check1&quot; value=&quot;c&quot;&gt;
&lt;/p&gt;
 &lt;p&gt;
 &lt;input type=&quot;submit&quot; name=&quot;Submit&quot; value=&quot;Submit&quot;&gt;
 &lt;/p&gt;
&lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
</div>

<div>
Try the code like below 
 
I have given sample code , change it as per your requirement 
 
for Radio button select one option by default that will ensure that one value must be selected 
 
for checkbox , I have give ncode below 

<pre><code class="code-10 nolinks" id="code-208796">&lt;script type=&quot;text/javascript&quot;&gt;
function check(f)
{
 var result;
 result = 0
	for(var i=0, limit=f.elements.length; i &lt; limit; ++i)
	{
		if( /checkbox/i.test( String(f.elements[i].type)) )
		{
			if ( f.elements[i].checked == true)
			{
			result = 1
			}
		}
	}
	 if ( result == 0)
	 {
	 alert(&quot;Please check at least one checkbox&quot;);
	 return false;
	 }
	 else
	 {
	 return true;
	 }
}
 
&lt;/script&gt; 
&lt;form&gt;
&lt;input type=checkbox id=&quot;chk1&quot;/&gt;
&lt;input type=checkbox id=&quot;Checkbox1&quot;/&gt;
&lt;input type=checkbox id=&quot;Checkbox2&quot;/&gt;
&lt;input type=checkbox id=&quot;Checkbox3&quot;/&gt;
 
&lt;input type=radio id=&quot;rbox4&quot; name=&quot;r1&quot; checked/&gt;
&lt;input type=radio id=&quot;rbox5&quot; name=&quot;r1&quot;/&gt;
&lt;input type=radio id=&quot;rbox6&quot; name=&quot;r1&quot;/&gt;
&lt;input type=radio id=&quot;rbox7&quot; name=&quot;r1&quot;/&gt;
&lt;input type='submit' name='Submit' value='Submit' onclick=&quot; return check(this.form)&quot;/&gt;
 
&lt;/form&gt;
</code></pre>
</div>

<div>
hi, am already having a script for to check few condition... ..can u form ur given javascript inside this..am not able to form ur script inside my my script....validation not happening for radio and checkbox.... 
 
&lt;SCRIPT LANGUAGE=&quot;javascript&quot;&gt; 
&nbsp; function getCheckCount(object) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var i = object.length; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var cnt = 0; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; for (var j=0; j&lt;i; j++) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (object[j].checked) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cnt++; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return cnt; 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; function getRadioSelectedIndex(object) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var i = object.length; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; for (var j=0; j&lt;i; j++) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (object[j].checked) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return j; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return -1; 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; 
function chkform() 
{ 
&nbsp; &nbsp; var form = document.form1; 
&nbsp; &nbsp; var regExp_email = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i; 
&nbsp; &nbsp; var regExp_name = new RegExp(&quot;^[a-zA-Z.]+$&quot;); 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp;if (form.name.value == &quot;&quot;) 
&nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Please Enter the your Name&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; form.name.focus(); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; else if ((form.name.value != &quot;&quot;) &amp;&amp;&nbsp;(!regExp_name.test(form.name.value))) 
&nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Name only Alphabets only!&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; form.fname.focus(); 
&nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; if (getRadioSelectedIndex(form.radio)==-1) 
&nbsp; &nbsp; &nbsp; &nbsp;{ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Please select a radio button&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; form.radio[0].focus(); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (getCheckCount(form.check)==0) 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;{ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Please select at least a checkbox&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; form.check[0].focus(); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; } 
&lt;/SCRIPT&gt; 
 
&lt;FORM ID=&quot;form1&quot; NAME=&quot;form1&quot; METHOD=&quot;post&quot; ACTION=&quot;empform.asp&quot; onSubmit=&quot;return chkform()&quot;&gt; 

</div>

<div>
Hi pratima...can u work ur javascript to work inside dis...script.....still checkbox validn not working ...... 
i changed like this.....but not validating.. 
 
function chkform(f) 
{ 
&nbsp; &nbsp; var form = document.form1; 
&nbsp; &nbsp; &nbsp; &nbsp;var result; 
&nbsp; &nbsp; &nbsp; &nbsp;result = 0 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;if (form.name.value == &quot;&quot;) 
&nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Please Enter the your Name&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; form.name.focus(); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return false; 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; for(var i=0, limit=f.elements.length; i &lt;&nbsp;limit; ++i) 
&nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if( i.test( String(f.elements[i].type)) ) 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if ( f.elements[i].checked == true) 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; result = 1 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;if ( result == 0) 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;{ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;alert(&quot;Please check at least one checkbox&quot;); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;return false; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;else 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;{ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return true; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} 
} 
&lt;/script&gt; 
 
&lt;FORM ID=&quot;form1&quot; NAME=&quot;form1&quot; METHOD=&quot;post&quot; ACTION=&quot;sd.asp&quot; onSubmit=&quot;return chkform(this.form)&quot;&gt; 

</div>

<div>
 
 
&lt;FORM ID=&quot;form1&quot; NAME=&quot;form1&quot; METHOD=&quot;post&quot; ACTION=&quot;sd.asp&quot; onSubmit=&quot;return chkform()&quot;&gt; 
&lt;table width=&quot;38%&quot; height=&quot;244&quot; border=&quot;0&quot; cellpadding=&quot;00&quot; cellspacing=&quot;00&quot;&gt; 
&nbsp; &lt;tr&gt; 
&nbsp; &nbsp; &lt;td&gt;Name&lt;/td&gt; 
&nbsp; &nbsp; &lt;td&gt;&lt;input type=&quot;text&quot; id=&quot;name&quot;/&gt;&lt;/td&gt; 
&nbsp; &lt;/tr&gt; 
&nbsp; &nbsp; &nbsp; &lt;tr&gt; 
&nbsp; &nbsp; &lt;td&gt;people&lt;/td&gt; 
&nbsp; &nbsp; &lt;td&gt;&lt;input name=&quot;pay&quot; type=&quot;radio&quot; value=&quot;0&quot; id=&quot;pay&quot; accesskey=&quot;1&quot; gr/&gt;frnd&lt;input name=&quot;pay&quot; type=&quot;radio&quot; value=&quot;1&quot; id=&quot;pay1&quot; &nbsp;/&gt;relative &nbsp; &nbsp;&lt;/td&gt; 
&nbsp; &nbsp; &lt;/tr&gt; 
&nbsp; &nbsp; &lt;tr&gt;&lt;td&gt;action&lt;/td&gt; 
&nbsp; &nbsp; &lt;td&gt;&lt;input type=&quot;checkbox&quot; value=&quot;5&quot; id=&quot;check&quot; /&gt;entertainment&lt;br /&gt;&lt;input type=&quot;checkbox&quot; value=&quot;6&quot; id=&quot;check&quot; /&gt;Movie&lt;br /&gt;&lt;input type=&quot;checkbox&quot; value=&quot;7&quot; id=&quot;check&quot; /&gt;song&lt;/td&gt;&lt;/tr&gt; 
&nbsp; &nbsp; &lt;tr&gt; 
&nbsp; &nbsp; &nbsp; &lt;td&gt;&lt;input name=&quot;submit&quot; type=&quot;submit&quot; value=&quot;submit&quot; style=&quot;text-align:center&quot; align=&quot;middle&quot; &nbsp;/&gt;&lt;/td&gt; 
&nbsp; &nbsp; &lt;/tr&gt; 
&lt;/table&gt; 
&lt;/FORM&gt;
</div>

<div>
wthr its not possible to make user to select &nbsp;radiobutton than by selecting one option in code.. . 
 
Checkbox is working fine.... 

</div>

<div>
<div class="content wysiwyg-content">
Hi, i need 
To select atleast one &nbsp;radiobutton and to select &nbsp;atleast one check box...in my form..can any one suggest... 
thankx..
</div>
</div>

Hi, i need 
To select atleast one  radiobutton and to select  atleast one check box...in my form..can any one suggest...
thankx..

Need Javascript  For Radiobutton,checkbox

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

Active Server Pages (ASP) is Microsoft’s first server-side engine for dynamic web pages. ASP’s support of the Component Object Model (COM) enables it to access and use compiled libraries such as DLLs. It has been superseded by ASP.NET, but will be supported by Internet Information Services (IIS) through at least 2022.