ecmascript:

function initialize()
{
   clock1.cycleInterval = delayInterval;
   clock2.cycleInterval = delayInterval;

   set_innerSwitchStyle(innerSwitchStyle);
   set_outerSwitchStyle(outerSwitchStyle);
}

function set_innerSwitchStyle(stringValue)
{
   if (stringValue != null)  //security check
   {
      if (stringValue != 'round')
      {
         if (stringValue != 'square')
         {
            printError(stringValue, 'inner');
            innerSwitchStyle = 'round';
         }
         else
         {
            innerSwitchStyle = stringValue;
         }
      }
      else
      {
          innerSwitchStyle = stringValue;
      }
   }

   if      (innerSwitchStyle == 'round')
   {
        switchInnerSquare.whichChoice = -1;
         switchInnerRound.whichChoice =  0;
   }
   else // (innerSwitchStyle == 'square')
   {
        switchInnerSquare.whichChoice =  0;
         switchInnerRound.whichChoice = -1;
   }
}

function set_outerSwitchStyle(stringValue)
{
   if (stringValue != null)    //security check
   {
      if (stringValue != 'round')
      {
         if (stringValue != 'square')
         {
            printError(stringValue, 'outer');
            outerSwitchStyle = 'round';
         }
         else
         {
            outerSwitchStyle = stringValue;
         }
      }
      else
      {
          outerSwitchStyle = stringValue;
      }
   }

   if      (outerSwitchStyle == 'round')
   {
        switchOuterSquare.whichChoice = -1;
         switchOuterRound.whichChoice =  0;
   }
   else // (outerSwitchStyle == 'square')
   {
        switchOuterSquare.whichChoice =  0;
         switchOuterRound.whichChoice = -1;
   }
}

function printError(s1, s2)
{
    if (traceEnabled)
    {
        Browser.println ('\nAllowed values are [round] and [square].');
        Browser.println ('Assigned value [' + s1 + '] (The values are case/whitespace-sensitive).');
        Browser.println ('Default value  [round] will be used for [' + s2 + 'SwitchStyle].');
    }
}