function setForm( ){
	var sel = document.getElementById('contactopt').value ;
	var my_forms = new Array ('inquiry','booking','quote') ;
	for (var i =0 ; i < my_forms.length;i++) {
		document.getElementById (my_forms[i]+'_form').style.display = (my_forms[i] == sel) ? 'block' : 'none' ;
	}
}