function returnQuoteText(bDisplayQuote)
{
   var text = "<p><center>Random Quote/Scene</center>" + '\n';

   if (bDisplayQuote == "true")
   {
      text += "<p>" + returnRandomQuote();
   }

   return (text);
}

function lengthQuote()
{
   var sum = 0;

   for (var i = 0; i < quote.length; i ++)
   {
      sum += quote[i].length;
   }

   return sum;
}

function returnQuote(num)
{
   var sum = 0;
   var text = "Invalid quote number";

   for (var i = 0; i < quote.length; i ++)
   {
      var index = num - sum;
      if (index >= 0 && index < quote[i].length)
      {
         text = quote[i][index] + 
            "&nbsp; (Quote " + (i + 1) + "-" + (index + 1) + ")";
//         if (i != 10 && i != 13) text = "";
      }
      sum += quote[i].length;
   }

   return text;
}

function writeQuote1(num)
{
   if (num >= 0 && num < lengthQuote())
   {
      var quoteText = returnQuote(num);
      if (quoteText != "")
         document.write("Quote #" + (num + 1) + " of " + lengthQuote() + 
            " total quotes:<p>" + quoteText);
   }
   else
   {
      document.write("Invalid quote number");
   }
}

function writeQuote2(n1, n2)
{
   if (n1 >= 0 && n1 < lengthQuote())
   {
      var quoteText = returnQuote(n1);
      if (quoteText != "")
         document.write("Quote #" + (n1 + 1) + " of " + lengthQuote() + 
            " total quotes (" + (n2 + 1) + "):<p>" + quoteText);
   }
   else
   {
      document.write("Invalid quote number");
   }
}

function randomOccurrences(maxIter)
{
   var quoteLength = lengthQuote();
   var occurrences = new Array(quoteLength);
   for (var i = 0; i < quoteLength; i ++)
   {
      occurrences[i] = 0;
   }
   for (var i = 0; i < maxIter; i ++)
   {
      var num = parseInt(Math.random() * quoteLength);
      occurrences[num] ++;
   }
   var minVal = minElem(occurrences);
   var maxVal = maxElem(occurrences);
   var avgVal = average(occurrences);
   document.write("<p>On " + maxIter + " iteration" +
      (maxIter == 1 ? "," : "s,"));
   document.write("<br>quote[" + minVal + "] has the smallest number of occurrences, which is "
      + occurrences[minVal] + (occurrences[minVal] != 1 ? " times," : " time,"));
   document.write("<br>quote[" + maxVal + "] has the largest number of occurrences, which is "
      + occurrences[maxVal] + (occurrences[maxVal] != 1 ? " times," : " time,"));
   document.write("<br>each element has an average of " + avgVal
      + (avgVal != 1 ? " occurrences," : " occurrence,"));
   for (var i = 0, lastIter = (i == quoteLength - 1);
        i < quote.length;
        i ++, lastIter = (i == quoteLength - 1))
   {
      document.write((!lastIter ? "" : " and")
         + "<br>quote[" + i + "] occurs " + occurrences[i]
         + (occurrences[i] != 1 ? " times" : " time")
         + (!lastIter ? "," : "."));
   }
}

function allQuotes()
{
   var number = 0;
   var firstTime = 1;
   var iStart = number;
   var iEnd = lengthQuote();
   for (var i = iStart, n = 0; i < iEnd; i ++, n ++)
   {
      if (firstTime == 0)
      {
         document.write("<p>");
      }
      else
      {
         firstTime = 0;
      }
      writeQuote1(i);
   }
}

function returnRandomQuote()
{
   var text = "";
   var quoteText = "";
   var number = parseInt(Math.random() * lengthQuote());
   var firstTime = 1;
   var iStart = number;
   var iEnd = number + 1;

   for (var i = iStart, n = 0; i < iEnd; i ++, n ++)
   {
      if (firstTime == 0)
      {
         text += "<p>";
      }
      else
      {
         firstTime = 0;
      }
      var quoteText = returnQuote(i);

      if (quoteText != "")
         text = "Quote #" + (i + 1) + " of " + lengthQuote() + 
            " total quotes:<p>" + quoteText;

   }

   return text;
}

function randomQuote()
{
   var number = parseInt(Math.random() * lengthQuote());
   var firstTime = 1;
   var iStart = number;
   var iEnd = number + 1;
   for (var i = iStart, n = 0; i < iEnd; i ++, n ++)
   {
      if (firstTime == 0)
      {
         document.write("<p>");
      }
      else
      {
         firstTime = 0;
      }
      writeQuote1(i);
   }
}

function showQuotes(switchVar)
{
   switch (switchVar)
   {
      case 'a':
         allQuotes();
         break;
      case 'r':
         randomQuote();
         break;
   }
}