function on_change_state(dropdown) {

	var myindex  = dropdown.selectedIndex
	var SelValue = dropdown.options[myindex].value
	obj = document.getElementById('stateMenu');
	if (SelValue == '188'){
		obj.style.visibility = 'visible';
	} else {
		obj.style.visibility = 'hidden';
	} // end if...then

	return true;

} // end function on_change