function postOpinion() {
var ajax = new Ajax();
ajax.onDone = function(ajaxObj,responseText) {
ge('progr7').style.display = 'none';
ge('op_field').value = '';
ge('op_msg').style.display = '';
};
ge('progr7').style.display = '';
ajax.post('/opinions.php', {'act': 'a_sent', 'to_id': ge('to_op_id').value, 'message': ge('op_field').value});
}