Drop down list validation when blank

Hi,

I’m trying to validate the drop down list. Please advice.

If Number1 or Number2 input field has some value and the country drop down is blank or null. How do i put an alert on submit

Here is my sample code

[CODE]
<SCRIPT LANGUAGE=”javascript”>
<!–
function checkSel(obj) {
var ind = obj.selectedIndex;
if (ind == ”) { alert(‘Please select the value.’); }
}
//–>

</SCRIPT>
[/CODE]

[code=html]
<form action=”” name=”myform” >
<table cellspacing=”2″ cellpadding=”2″ border=”0″>
<tr>
<td align=”right”>Country</td>
<td>
<SELECT name=”Country” onChange=”checkSel(this);”>
<option value=”” selected>
<option value=”008″>Albania
<option value=”012″>Algeria
<option value=”016″>American Samoa
<option value=”020″>Andorra
</SELECT>
</td>
<td><input type=”text” name=”Number1″ value=”” size=”8″
maxlength=”8″></td>
<td><input type=”text” name=”Number2″ value=”” size=”8″
maxlength=”8″></td>
</tr>
<tr>
<td align=”right”></td>
<td><input type=”submit” value=”Submit”></td>
</tr>
</table>
</form>
[/code]

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