var toggledDisplay = new Object();
    toggledDisplay['sub1'] = true;
    toggledDisplay['sub2'] = true;
    toggledDisplay['sub3'] = true;
	 toggledDisplay['sub4'] = true;
	 toggledDisplay['sub5'] = true;
	 toggledDisplay['sub6'] = true;
	 toggledDisplay['sub7'] = true;
	 toggledDisplay['sub8'] = true;
	 toggledDisplay['sub9'] = true;
	 toggledDisplay['sub10'] = true;
	 toggledDisplay['sub11'] = true;
	 toggledDisplay['sub12'] = true;
	 toggledDisplay['sub13'] = true;
	 toggledDisplay['sub14'] = true;
	 toggledDisplay['sub15'] = true;
	 toggledDisplay['sub16'] = true;
	 toggledDisplay['sub17'] = true;
	 toggledDisplay['sub18'] = true;
	 toggledDisplay['sub19'] = true;
	 toggledDisplay['sub20'] = true;
	 toggledDisplay['sub21'] = true;
	 toggledDisplay['sub22'] = true;
	 toggledDisplay['sub23'] = true;
	 toggledDisplay['sub24'] = true;
	 toggledDisplay['sub25'] = true;
	 toggledDisplay['sub26'] = true;
	 toggledDisplay['sub27'] = true;
	 toggledDisplay['sub28'] = true;
	 toggledDisplay['sub29'] = true;
	 toggledDisplay['sub30'] = true;
	 toggledDisplay['sub31'] = true;
	 toggledDisplay['sub32'] = true;

function toggleDisplay(mmURL,bDisplayed)
{
  if(!document.getElementById || toggleDisplay.arguments.length < 2) return;
  var displayed = new Object();
      displayed['true'] = '';
      displayed['false'] = 'none';
  for(var i = 1; i < toggleDisplay.arguments.length; i++)
  {
    oDisplay = document.getElementById(toggleDisplay.arguments[i]);
	iDisplay = document.getElementById(toggleDisplay.arguments[i]+'img');
    if(oDisplay)
    {
      oDisplay.style.display = displayed[bDisplayed];
	  if(displayed[bDisplayed])
	  {
	  	iDisplay.src = mmURL+'speakers/resource-arrow.gif';
	  }
	  else
	  {
	  	iDisplay.src = mmURL+'speakers/resource-arrow-down.gif';
	  }
	 
      // mozilla is the only browser out of the lot that can't get this right.  so, if we're
      // setting an object's display style to block, we gotta reload any images contained
      // within that block.  mozilla won't do it for you like every other browser that
      // supports the functionality of changing the display style dynamically.
      // begin crap browser hack
      if(bDisplayed)
      {
        oImages = oDisplay.getElementsByTagName('IMG');
        for(var j = 0; j < oImages.length; j++)
          oImages[j].src = oImages[j].src;
      }
      // end mozilla, err, crap browser hack
       if(typeof toggledDisplay[toggleDisplay.arguments[i]] != 'undefined')
        toggledDisplay[toggleDisplay.arguments[i]] = !bDisplayed;
    }
  }
}