-function info_onlyifknown_isvisible()
-{
- var vis = 'inherit';
- var arr = $('info').getElementsByClassName('friend_id');
- var obj = null;
-
- for (var k = 0 ; k < arr.length ; k++) {
- if (arr[k].checked == true) {
- obj = arr[k];
- break;
- }
- }
- if (obj == null) {
- return false;
- }
-
- if (obj.value == 'black' || obj.value == 'unknown') {
- vis = 'hidden';
- }
- $('info').getElementsByClassName('onlyifknown_id')[0].style.visibility = vis;
- return true;
-}