function call(bll_class_name, method_name, parameters, contaiter_id, big) {
	if (contaiter_id != undefined) {
		if (big) {
			$("#" + contaiter_id).html('<div align="center"><img src="/images/ajax-loader-big.gif" /></div>');
		}
		else {
			$("#" + contaiter_id).html('<div align="center"><img src="/images/ajax-loader.gif" /></div>');
		}
	}
	var o = new Observer;
	$.post("/ajax/handler.php", { 'ajax': 1, 'bll_class_name': bll_class_name, 'method_name': method_name, 'parameters[]': parameters }, function(data, status){
		o.notify(data);
		if (contaiter_id != undefined) {
			$("#" + contaiter_id).html('');
		}
	}, "json");
	return o;
}