jquery.js Problems

jquery.js Problems

Hello, i have a Problem again.. When i am link jquery.js in my html file no other js functions are available 
    
    
     
  1. <!DOCTYPE html>
    2. 
     
  2. <html>
    3. 
     
  3.  <head >
    4. 
     
  4.  <meta charset="UTF8" />
    5. 
     
  5.  <script src="jquery.js"></script>
    6. 
     
  6.  
    7. 
     
  7.  <script>
    8. 
     
  8.  function OpenWindow(window) {
    9. 
     
  9.  if(window=="login") {document.getElementById("login").style.display = 'block';}
    10. 
     
  10.  else if(window == "register") {document.getElementById("register").style.display = 'block';}
    11. 
     
  11. }
    12. 
     

    13. 
     
  13.  
    14. 
     
  14.  </script>
    15. 
     
  15.  </head>
    16. 
     
  16.  <body >
    17. 
     
  17.  Test ob Erstellt
    18. 
     
  18.  <div id="login" style="display: none;">
    19. 
     
  19.  LoginLoginLoginLoginLoginLoginLoginLoginLoginLoginLoginLogin
    20. 
     
  20.  </div>
    21. 
     
  21.  <div id="register" style="display: none;">
    22. 
     

    23. 
     
  23.  RegisterRegisterRegisterRegisterRegisterRegisterRegisterRegister
    24. 
     
  24.  </div>
    25. 
     
  25.  </body>
    26. 
     
  26. </html>
    27.
The Function OpenWindow is never called, when i am delete " <script src="jquery.js"></script>" its works..