title: how to split NSArray into alphabetical sections for use with index tableview
body: <p>I have a NSArray that I have parsed and sorted alphabetically from some xml I am getting from my database. I am now wondering how to split this array up for use with a index on a tableview for quicker searching.</p>
  
  <p>Where my table gets a bit different is that it dosn't alway use the whole alphabet, and unlike most examples I have found the dataset I use varies alot from day to day..</p>
  
  <p>so I am trying to figure out how to split a sorted array into alphabetical sections that are not always the same.</p>
  
  <p>As cocofu pointed out, Yes I have got my sectionIndexTitlesForTableView already implemented, I am now trying to split my nsarray into sections so that scrolling works with sectionIndexTitlesForTableView.</p>