public void BackToCata()
 {
     pageNum  = 0;
     clueText = back.GetComponentInChildren <ClueText>();
     clueText.changeColor();
 }
 public void Board()
 {
     pageNum  = 4;
     clueText = index_4.GetComponentInChildren <ClueText>();
     clueText.changeColor();
 }
 public void Routines()
 {
     pageNum  = 2;
     clueText = index_2.GetComponentInChildren <ClueText>();
     clueText.changeColor();
 }
 public void Computer()
 {
     pageNum  = 3;
     clueText = index_3.GetComponentInChildren <ClueText>();
     clueText.changeColor();
 }
 public void Introduction()
 {
     pageNum  = 1;
     clueText = index_1.GetComponentInChildren <ClueText>();
     clueText.changeColor();
 }