// blank the current region
for ( var i = what.form.<% $opt{'prefix'} %>region.length; i >= 0; i-- )
what.form.<% $opt{'prefix'} %>region.options[i] = null;
// blank the current region
for ( var i = what.form.<% $opt{'prefix'} %>region.length; i >= 0; i-- )
what.form.<% $opt{'prefix'} %>region.options[i] = null;