Alert Message - URGENT

Hi experts..

I have 2-select boxes in JSP page, and have a submit button.

<input type="submit" name"whatever" onclick="....." />

I want to fire alert message when clicking on the button if both or one of the select boxes is empty ..

help me please ..
LVL 9
DrAskeAsked:
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flipzCommented:
Try something like the following:

<form name="frmSubmit" id="frmSubmit" onSubmit="return checkForm();">
<select name="lstSelectOne">
<option>Select an Option...</option>
<option>Option 1</option>
<option>Option 2</option>
<option>Option 3</option>
</select>
<select name="lstSelectTwo">
<option>Select an Option...</option>
<option>Option 1</option>
<option>Option 2</option>
<option>Option 3</option>
</select>
<input type="submit" value="Submit">
</form>


<script language="JavaScript">
var frm = document["frmSubmit"];
function checkForm() {
    if (frm.lstSelectOne.selectedIndex == 0 || frm.lstSelectTwo.selectedIndex == 0) {
      alert("Select options!");
      //return false;      //uncomment to prohibt form from being submitted
    }
    return true;
 }
</script>
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DrAskeAuthor Commented:
Thank you !! and sorry for being late :o)

regards,
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