function splitStringForItemX(stringToSplit,seperator,diffNum) {
  // splits a string into an array using the seperator
  // takes item itemX of this array and returns it
  arrayOfStrings = stringToSplit.split(seperator);
  var itemXNum = arrayOfStrings.length - diffNum;
  var itemX =  arrayOfStrings[itemXNum];
  return itemX;
}

function splitStringForLastItem(stringToSplit,seperator) {
  // splits a string into an array using the seperator
  // takes the last item of this array and returns it
  var arrayOfStrings = new Array();
  arrayOfStrings = stringToSplit.split(seperator);
  var lastItemNum = arrayOfStrings.length - 1;
  var lastItem =  arrayOfStrings[lastItemNum];
  return lastItem;
}

function extractChapter(theString){
	var theChapterExtracted = '';
	for(i=0;i<=theString.length;i++){
		if((theString.charCodeAt(i)>94) && (theString.charCodeAt(i)<123)){
			theChapterExtracted = theChapterExtracted + theString.charAt(i)
		}
		else if(theString.charCodeAt(i)==46){
			break;
		}
	}
	return theChapterExtracted;
}