sessions/cookies

I wrote an authentication class in php4. The sessions dont seem to be working with internet explorer, just with FF. here is the code below, a cookies notice pops up when you try and login: <?php class auth { var $UserID; var $AdminLevel; var $FirstName; var $LastName; var $DateAdded; var $MobileTelephone; var $LandLineTelephone;

    // Connect to the database

function auth() { mysql_connect('','','') or die('ERROR: Could not connect to database'); mysql_select_db('') or die('ERROR: Could not select database'); }

    // Attempt to login a user

function CheckValidUser($Email,$Password) { $result = mysql_query('SELECT * FROM Users'); $Password = $this->encode($Password); if (mysql_num_rows($result) != 0) { while($row = mysql_fetch_assoc($result)) { if (!strcmp($row['Email'],$Email)) { if (!strcmp($row['Password'],$Password)) { // User info stored in Globals $this->UserID = $row['ID']; $this->AdminLevel = $row['Admin_Level']; $this->FirstName = $row['First_Name']; $this->LastName = $row['Last_Name']; $this->DateAdded = $row['Date_Added']; $this->MobileTelephone = $row['Telephone_Mobile']; $this->LandLineTelephone = $row['Telephone_Land_Line']; // User info stored in Sessions session_start(); $_SESSION['Status'] = "loggedIn"; $_SESSION['Email'] = $row['Email']; $_SESSION['AdminLevel'] = $row['Admin_Level']; $_SESSION['LandLine'] = $row['Telephone_Land_Line']; $_SESSION['MobileTelephone'] = $row['Telephone_Mobile']; $_SESSION['FirstName'] = $row['First_Name']; $_SESSION['LastName'] = $row['Last_Name']; return true; } } } header("Location: index.php?error=invalidLogin"); } else { die('ERROR: No Users in the database!'); } } // Create a new user account function CreateUser($Email, $Password, $AdminLevel, $LandLineTelephone, $MobileTelephone, $FirstName, $LastName) { $Password = $this->encode($Password); $this->AccessLevel = $AdminLevel; $DateAdded = date("Y-m-d H:i:s"); mysql_query("INSERT INTO Users (Email, Password, Admin_Level, Date_Added, First_Name, Last_Name, Telephone_Land_Line, Telephone_Mobile) VALUES ('$Email','$Password','$AdminLevel', '$DateAdded', '$FirstName', '$LastName', '$LandLineTelephone', '$MobileTelephone')") or die(mysql_error()); return $this->UserID = mysql_insert_id();

    }

// Update a users access level function UpdateAccessLevel($ID,$AdminLevel) { mysql_query("UPDATE Users SET Admin_Level='$AdminLevel' WHERE ID=$ID") or die(mysql_error()); return true; }

    // Delete a user

function DeleteUser($ID) { mysql_query("DELETE FROM Users WHERE ID=$ID") or die(mysql_error()); return true; }

    // Get a users access level

function GetAccessLevel() { return $this->AccessLevel; }

    // Get a users ID

function GetUserID() { return $this->UserID; } // Log user out function LogOut() { session_start(); session_unset(); session_destroy(); header("Location: index.php"); } // Check users access level to see if they have clearance for a certain page function CheckUserLevel($RequiredLevel) { if ($_SESSION['AdminLevel'] < $RequiredLevel) { if ($_SESSION['AdminLevel'] == 2) { header("Location: financial.php"); } else if ($_SESSION['AdminLevel'] == 1) { header("Location: user.php"); } else { header("Location: index.php"); } } } // Check to see if a user is logged in function CheckLoggedIn() { session_start(); if ($_SESSION['Status'] != "loggedIn") { header("Location: index.php"); } } // Private Methods function encode($str) { return md5(base64_encode($str)); } } ?>