function GetMemberInfos($fields,$mid){
global $dsql;
if($mid <= 0){
$revalue =  "Error";
}        
else{            
$row=$dsql->GetOne("select * from dede_member where mid = '{$mid}'");            
if(!is_array($row)){
$revalue = "Not user";            
  }
else{
$revalue = $row[$fields];            
  }        
}        
return $revalue;    
}