 	}
 	
 	override func tableView(tableView: UITableView!, sectionForSectionIndexTitle title: String!, atIndex index: Int) -> Int {
-		if collation {
+		if collation != nil {
 			return collation!.sectionForSectionIndexTitleAtIndex(index)
 		}
 		return index

    override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell? {
		let CELL_ID = "Cell"
		var cell = tableView.dequeueReusableCellWithIdentifier(CELL_ID) as? SESlideTableViewCell
		if !cell {
			cell = SESlideTableViewCell(style: .Default, reuseIdentifier: CELL_ID)
			cell!.selectionStyle = .None
			cell!.delegate = self

    //MARK - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView!) -> Int {
		if collation != nil {
			return collation!.sectionIndexTitles.count
		} else {
			return 1
