var chk = true;

function check_all(f)
{
    var idx = document.getElementsByName("chk[]");

    for (i=0; i<idx.length; i++)
        if(!idx[i].disabled) idx[i].checked = chk;

	chk = !chk;
}

function is_checked()
{
	var idx = document.getElementsByName("chk[]");
    var bchk = false;

    for (i=0; i<idx.length; i++)
    {
        if (idx[i].checked)
            bchk = true;
    }

	return bchk;
}

function do_del()
{
	if(is_checked())
	{
		if(confirm("선택된 친구를 삭제 하시겠습니까?"))
		{
			listForm.target = "hiddenAction";
			listForm.action = "del.php";
			listForm.submit();
		}
	}
}

function do_move()
{
	if(is_checked())
	{
		var adminWin = windowOpenCenter("", "friendMoveWin", "450", "450");
		listForm.target = "friendMoveWin";
		listForm.action = "pop_group.htm";
		listForm.submit();
	}
}

function do_sendMemo()
{
	if(is_checked())
	{
		windowOpenCenter('', 'friend_memowrite', '402', '375');
		listForm.target = "friend_memowrite";
		listForm.action = "memo_write.htm";
		listForm.submit();
	}
}