code: function MsExcel_GetDrawingLst() {
  
  		$lst = array();
  
  		$dir = '../drawings/';
  		$dir_len = strlen($dir);
  		$o = $this->OpenXML_Rels_GetObj($this->TBS->OtbsCurrFile, $dir);
  		foreach($o->TargetLst as $t) {
  			if ( (substr($t, 0, $dir_len)===$dir) && (substr($t, -4)==='.xml') ) $lst[] = 'xl/drawings/'.substr($t, $dir_len);
  		}
  
  		return $lst;
  	}
docs: Return the list of images in the current sheet