function eventRequestRelation(request_name, tg_male, tg_female, my_sex) {
	var disabled = false;
	for (var i=0; i<2; i++) {
		var elem_rq = document.getElementsByName(request_name+'['+i+']').item(0);
		if (elem_rq.options[elem_rq.selectedIndex].value == 18) {
			if (my_sex == 1) {
				document.getElementsByName(tg_female).item(0).disabled = true;
				disabled = true;
			} else {
				document.getElementsByName(tg_male).item(0).disabled = true;
				disabled = true;
			}
		}
	}
	
	if (disabled == false) {
		document.getElementsByName(tg_female).item(0).disabled = false;
		document.getElementsByName(tg_male).item(0).disabled = false;
	}
}