<script type="text/javascript">
function doIt(){
var temp01 = document.getElementById('lstTest1')[document.getElementById('lstTest1').selectedIndex].value;
var temp02 = document.getElementById('lstTest2')[document.getElementById('lstTest2').selectedIndex].value; document.getElementById('txtArea').value = temp01 + ' ' + temp02
}
</script>
<form>
<p>
<select name="lstTest1" id="lstTest1">
<option value="something">something</option>
<option value="other">other</option>
</select>
</p>
<p>
<select name="lstTest2" id="lstTest2">
<option value="red">red</option>
<option value="green">green</option>
<option value="blue">blue</option>
</select>
</p>
<p><input type="button" value="populate" onclick="doIt();"></p>
<p><textarea name="txtArea" id="txtArea" rows="5" cols="20"></textarea></p>
</form>