Login script Problem

I have found the following login scrit but for some reason no matter what you type in it lets you login.

 private var formNick = ""; //this is the field where the player will put the name to login
 private var formPassword = ""; //this is his password
 var formText = ""; //this field is where the messages sent by PHP script will be in
  
 var URL = "http://mywebsite/check_scores.php"; //change for your URL
 var hash = "yourpassword"; //change your secret code, and remember to change into the PHP file too
  
 private var textrect = Rect (10, 300, 200, 75); //just make a GUI object rectangle
 
 var username = "test";
     var userpassword="test";
 
     var areaHeight = 240;
      var areaWidth = 200;
     
     var areaHeightReg=240;
     var areaWidthReg=200;
 
 
         
     var  background: Texture2D;
     var gui : GUISkin;
  
 function OnGUI() {
 
 
     GUI.TextArea( textrect, formText );
    
 
 GUI.DrawTexture(new Rect(0,0,Screen.width,Screen.height), background);
 GUI.skin = gui;
 
 
 var ScreenX = ((Screen.width / 2) - (areaWidth / 2));
        var ScreenY = ((Screen.height / 2) - (areaHeight/ 2));
        
        GUILayout.BeginArea (new Rect (ScreenX, ScreenY, areaWidth, areaHeight),"Login","Window");
        
 GUILayout.Space(15);
 
 GUILayout.Label("Username: ");
 
 
  
 GUILayout.Space(40);
  
  GUILayout.Label("Password: ");
 
  
     formNick = GUI.TextField ( Rect (38, 110, 225, 20), formNick ); //here you will insert the new value to variable formNick
     
     formPassword = GUI.PasswordField ( Rect (38, 200, 225, 20), formPassword, "*"[0] ); //same as above, but for password
     
     GUILayout.Space(4);
  
     if ( GUI.Button ( Rect (80, 235, 150, 30) , "Login" ) ){ //just a button
         Login();
     }
     
     
     GUILayout.EndArea();
     
     
     
 }
  
 function Login() {
     var form = new WWWForm(); //here you create a new form connection
     form.AddField( "myform_hash", hash ); //add your hash code to the field myform_hash, check that this variable name is the same as in PHP file
     form.AddField( "myform_nick", formNick );
     form.AddField( "myform_pass", formPassword );
     var w = WWW(URL, form); //here we create a var called 'w' and we sync with our URL and the form
     yield w; //we wait for the form to check the PHP file, so our game dont just hang
     if (w.error != null) {
         print(w.error); //if there is an error, tell us
     } else {
         print("Test ok");
         formText = w.data; //here we return the data our PHP told us
         w.Dispose(); //clear our form in game
        // Application.LoadLevel("fgdf");
     }
  
     formNick = ""; //just clean our variables
     formPassword = "";
 }