Question about validating a multiple select box...

[kj2w]

I have a multiple select box. Before I submit my form, I'd like to make sure that something is selected otherwise throw an alert box.

Example:

<form name="myForm" action="test.html" method="post">
<select name="sB" multiple>
<option name="test">Test</option>
<option name="test2">Test2</option>
<option name="test3">Test3</option>
</select>
</form>

<script laguage="JavaScript">
if(?document.myForm.sb.checked?){
document.myForm.submit();
}
</script>

Any Ideas,
Jason

[Khalid Ali]

replace this

if(?document.myForm.sb.checked?){
document.myForm.submit();
}

with the one below

var lb = document.myForm.sb;
if(sb.selectedIndex>-1){
document.myForm.submit();
}