package MySample;
sub build_dropdown
{
	# 	build_dropdown(  \$DataObject , 'key_function', 'text_function', 'Select A Header', 'preselectedValue' );
	my @xml;
	if ( $_[3] )
	{
		push @xml , qq{<option value="">$_[3]</option>};
		push @xml , qq{<option value="">==========</option>};
	}
	foreach my $id ( $_[0]->{$_[1]}() )
	{
		my 		$sel = ( $id == $_[4] ) ? ' selected' : '';
		push 	@xml , ("<option value=\"$id\"${sel}>" . $_[0]->{$_[2]}($id) . '</option>');
	}
	return join "\n" , @xml;
}