function doToggle(newDivID) {
 var oldDivID = "";
 
 var divTags = document.getElementsByTagName('div');
 for (i=0; i<divTags.length; i++) {
  if (divTags[i].id.indexOf('option-') > -1) {
   if (divTags[i].style.display != 'none') {
    oldDivID = divTags[i].id;
   }
  }
 }

 if (newDivID != oldDivID) {
	 if (oldDivID.length > 0 ) {
	  Effect.toggle(oldDivID,'blind',{duration:0.5});;
	 }
	 
	 Effect.toggle(newDivID,'blind',{duration:0.5,delay:0.75});;
 }
 return false;
}