Validating Selected Drop Down list

Trying to validate Selected drop down in my Cold Fusion for Netscape 4.77 browser:

[code]
Network<BR>
<P><SELECT MULTIPLE NAME=”network”>
<!– <OPTION VALUE=”TBD” SELECTED>Select Options:</OPTION> –>
<cfquery name=”listNet” datasource=”mydatabasename” dbtype=”ODBC”>
select *
from network_table
</cfquery>
<CFOUTPUT QUERY=”listNet”>
<OPTION VALUE=”#network#”>#network#</OPTION>
</CFOUTPUT>
</SELECT>&nbsp;</P>[/code]

I tried this with JavaScript:

[code]
function Val()
{
if(document.myFormName.network.selectedIndex == 0)
{
alert(‘Select a networkn’);
}
}

<cfform action = “myformaction.cfm” name = “myFormName” onSubmit = “Val();”>[/code]

The above didnt work. Please advise.

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