var _chked = true;
function sort(st)
{
    if(document._list_form.sort.value == st)
    {
        document._list_form.line.value = reverseLine(document._list_form.line.value);
    }
    document._list_form.page.value = 1;
    document._list_form.sort.value = st;
    document._list_form.submit();
}
function reverseLine(lt)
{
    if(lt == "desc") return "asc";
    else             return "desc";
}
function chkall(boxname, _fchked)
{
    var box = document.getElementsByName(boxname);
    var chked = false;
    if(_fchked != null) chked = _fchked;
    else                chked = _chked;
    for(var i=0; i < box.length ; i++)
    {
        if(chked) box[i].checked = true;
        else      box[i].checked = false;
    }
    if(_chked) _chked = false;
    else       _chked = true;
}