javascript in windows application

function TextLanguageAr(e, input) 
{
   var unicode = e.which;  
   switch (unicode) 
   {
      case 192: input.value += 'ذ';   return false; break;      
      case 81: input.value += 'ض';   return false; break;      
      case 87: input.value += 'ص';   return false; break;      
   }
}

function Shift_Key_pressed(e)
{
   kc = e.which;
   sk = e.shiftKey ? e.shiftKey : ((kc == 16) ? true : false);  
   if (((kc >= 65 && kc <= 90) && !sk) || ((kc >= 97 && kc <= 122) && sk))  
      return false;  
   else
      return true;  
}