$(function(){

$('select.main_select').change(function(){
	var select_data = $(this).val();
	if( select_data == "others"){
		$('.others_select').css("display", "inline");
		$('.others_select').attr("name", 'domains[]');
		}else{
		$('.others_select').css("display", "none");
		$('.others_select').removeAttr("name");
		}
	});


});