BCE0044 expected EOF and } found 'else' Help me Please!!

So i have this code and i get warning bce0044 twice:

29,9 expected } found 'else'

34,9 expected EOF found 'else'

Now i have checked my whole script for open brackets but couldn't find any

i don't have much experience with coding so mabye that's why i don't see anything wrong

so can i hazz help plz??

 var isLevelSelect1Button = false;
 var isLevel2Button = false;
 var isLevel3Button = false;
 var isLevel4Button = false;
 var isBackButton = false;
 var isCredits5Button = false;
 var isQuit1Button = false;
 var isQuit2Button = false;
 
 renderer.material.color = Color.white;
 
 function OnMouseEnter ()
 {
     renderer.material.color = Color.red;
 }
 
 function OnMouseExit ()
 {
     renderer.material.color = Color.white;
 }
 
 function OnMouseUp ()
 {
     if ( isLevelSelect1Button );
     {
         Application.LoadLevel (1);
     }
     
     else if ( isLevel2Button );
     {
         Application.LoadLevel (2);
     }
     
     else if ( isLevel3Button );
     {
         Application.LoadLevel (3);
     }
     
     else if ( isLevel4Button );
     {
         Application.LoadLevel (4);
     }
     
     else if ( isBackButton );
     {
         Application.LoadLevel (0);
     }
     
     else if ( isCredits5Button );
     {
         Application.LoadLevel (5);
     }
     
     else if ( isQuit1Button );
     {
         Application.LoadLevel (6);
     }
     
     else if ( isQuit2Button );
     {
         Application.Quit ();
     }
 }