function get_url(id) {
	if (id == 1) {
		open("./", "_self");
	}
	if (id == 2) {
		open("./service.php", "_self");
	}
	if (id == 3) {
		open("./objects.php", "_self");
	}
	if (id == 4) {
		open("./price.php", "_self");
	}
	if (id == 5) {
		open("./contacts.php", "_self");
	}
	if (id == 6) {
		open("./vacancy.php", "_self");
	}
}