buttonon = new Image; 
buttonon.src = "Images/c-fullA.gif";

buttonoff = new Image; 
buttonoff.src = "Images/c-full.gif";

function MouseOverRoutine(Buttonid)
{
    switch (Buttonid)
    {
      case 1:
        document.button1.src = buttonon.src;
        break;
        
      case 2:
        document.button2.src = buttonon.src;
        break;
        
      case 3:
        document.button3.src = buttonon.src;
        break;
        
      case 4:
        document.button4.src = buttonon.src;
        break;
        
      case 5:
        document.button5.src = buttonon.src;
        break;

      case 6:
        document.button6.src = buttonon.src;
        break;
        
      case 7:
        document.button7.src = buttonon.src;
        break;
        
      case 8:
        document.button8.src = buttonon.src;
        break;
        
      case 9:
        document.button9.src = buttonon.src;
        break;
        
      case 10:
        document.button10.src = buttonon.src;
        break;
        
      case 11:
        document.button11.src = buttonon.src;
        break;
    }
}

function MouseOutRoutine(Buttonid)
{
  switch (Buttonid)
  {
    case 1:
      document.button1.src = buttonoff.src;
      break;
      
    case 2:
      document.button2.src = buttonoff.src;
      break;
    case 3:
      document.button3.src = buttonoff.src;
      break;
    case 4:
      document.button4.src = buttonoff.src;
      break;
    
    case 5:
      document.button5.src = buttonoff.src;
      break;
    
    case 6:
      document.button6.src = buttonoff.src;
      break;
    
    case 7:
      document.button7.src = buttonoff.src;
      break;
    
    case 8:
      document.button8.src = buttonoff.src;
      break;
    
    case 9:
      document.button9.src = buttonoff.src;
      break;
    
    case 10:
      document.button10.src = buttonoff.src;
      break;
    
    case 11:
      document.button11.src = buttonoff.src;
      break;
    
   }
  
}