// Button control for navigation
active1 = new Image(26,26);
 active1.src = "Images/but1b.jpg";
 inactive1 = new Image(26,26);
 inactive1.src = "Images/but1a.jpg";

active2 = new Image(26,26);
 active2.src = "Images/but2b.jpg";
 inactive2 = new Image(26,26);
 inactive2.src = "Images/but2a.jpg";

active3 = new Image(26,26);
 active3.src = "Images/but3b.jpg";
 inactive3 = new Image(26,26);
 inactive3.src = "Images/but3a.jpg";
 
active4 = new Image(26,26);
 active4.src = "Images/but4b.jpg";
 inactive4 = new Image(26,26);
 inactive4.src = "Images/but4a.jpg";

active5 = new Image(26,26);
 active5.src = "Images/but5b.jpg";
 inactive5 = new Image(26,26);
 inactive5.src = "Images/but5a.jpg";
 
active6 = new Image(26,26);
 active6.src = "Images/but6b.jpg";
 inactive6 = new Image(26,26);
 inactive6.src = "Images/but6a.jpg";