code: function MsPowerpoint_InitSlideLst($Master = false) {
  
  		if ($Master) {
  			$RefLst = &$this->OpenXmlSlideMasterLst;
  		} else {
  			$RefLst = &$this->OpenXmlSlideLst;
  		}
  		
  		if ($RefLst!==false) return $RefLst;
  
  		$PresFile = 'ppt/presentation.xml';
  
  		$prefix = ($Master) ? 'slideMasters/' : 'slides/';
  		$o = $this->OpenXML_Rels_GetObj('ppt/presentation.xml', $prefix);
  
  		$Txt = $this->FileRead($PresFile);
  		if ($Txt===false) return false;
  
  		$p = 0;
  		$i = 0;
  		$lst = array();
  		$tag = ($Master) ? 'p:sldMasterId' : 'p:sldId';
  		while ($loc = clsTbsXmlLoc::FindStartTag($Txt, $tag, $p)) {
  			$i++;
  			$rid = $loc->GetAttLazy('r:id');
  			if ($rid===false) {
  				$this->RaiseError("(Init Slide List) attribute 'r:id' is missing for slide #$i in '$PresFile'.");
  			} elseif (isset($o->TargetLst[$rid])) {
  				$f = 'ppt/'.$o->TargetLst[$rid];
  				$lst[] = array('file' => $f, 'idx' => $this->FileGetIdx($f), 'rid' => $rid);
  			} else {
  				$this->RaiseError("(Init Slide List) Slide corresponding to rid=$rid is not found in the Rels file of '$PresFile'.");
  			}
  			$p = $loc->PosEnd;
  		}
  
  		$RefLst = $lst;
  		return $RefLst;
  
  	}
docs: Return the list of slides in the Ms Powerpoint presentation.
  @param {boolean} $Master Trye to operate on master slides.
  @return {array} The list of the slides, of false if an error occurs.