function check(element){
	if(element.name == 'kind_of_travel') {
		if(element.value == '0'){
			document.getElementById('my_variant_kind_of_travel').style.display='block';
		}
		else{
			document.getElementById('my_variant_kind_of_travel').style.display='none';
		}
	}
	if(element.name == 'city_of_departure') {
		if(element.value == '0'){
			document.getElementById('my_variant_city_of_departure').style.display='block';
		}
		else{
			document.getElementById('my_variant_city_of_departure').style.display='none';
		}
	}
	if(element.name == 'city_of_arrival') {
		if(element.value == '0'){
			document.getElementById('my_variant_city_of_arrival').style.display='block';
		}
		else{
			document.getElementById('my_variant_city_of_arrival').style.display='none';
		}
	}
}