Pagination plugin: updated to navigate to first and last page

/**
 *	Name: Pip (Pagination Plugin)
 *	Version: 1.0
 *	Author: Armand "bS" Pondman ([email protected])
 *      Inclusion of next/last navigation by Virgil Rockford ([email protected])
 *	Updated: August 29, 2007 12:00 EDT
 *
 *  Description:
 *  will paginate a document when delimiter is found in the content. 
 *
 *  Configuration:
 *  check the OnLoadWebDocument event
 *
 *    optional: 
 *      Edit the values under the CUSTOMIZE Header
 *
 */

## CUSTOMIZE ##
$delimiter = '{NewPage}';
$tplLinkNext = '<a href="[+link+]">></a>';
$tplLinkPrev = '<a href="[+link+]"><</a>';
$tplLinkLast = '<a href="[+link+]">>></a>';
$tplLinkFirst = '<a href="[+link+]"><<</a>';
$tplLinkNav = '
  <div style="font-size:small;clear:both;"><p align="center">
  [+linkfirst+] [+linkprev+]
   Page [+current+] of [+total+] 
  [+linknext+] [+linklast+]
 </p></div>';

## DO NOT EDIT BELOW THIS LINE ##
$e = &$modx->Event;

switch($e->name) {
  case 'OnLoadWebDocument':
    $pip_content = $modx->documentObject['content'];
	$pip_pagecontent = explode($delimiter,$pip_content);
	$pip_pagecount = count($pip_pagecontent);
	
	if ($pip_pagecount > 1)
	{
	  $pip_currentpage = isset($_GET["page"]) ? $_GET["page"]: 1;
	  if ($pip_currentpage > $pip_pagecount || $pip_currentpage < 1) { $pip_currentpage = 1; }
	
	  $char = ($modx->config['friendly_urls'] == 0) ? "&" : "?";
	  $url = $modx->makeurl($modx->documentObject["id"],'',$char.'page=');
          $docbase = $modx->makeurl($modx->documentObject["id"]);
          
	  
	  $prevpage = $pip_currentpage-1;
	  $nextpage = $pip_currentpage+1;
	  
	  $linkprev = ($prevpage>0) ? str_replace("[+link+]",$url.$prevpage,$tplLinkPrev) : '';
	  $linknext = ($nextpage>$pip_pagecount) ? '' : str_replace("[+link+]",$url.$nextpage,$tplLinkNext);
  
          if ($pip_currentpage == 1)
          $linkfirst = "";
          else
          $linkfirst = str_replace("[+link+]",$docbase,$tplLinkFirst);
 
          if ($pip_currentpage == $pip_pagecount)
          $linklast = "";
          else 
          $linklast = str_replace("[+link+]",$url.$pip_pagecount,$tplLinkLast);
          
	  $pip_template = str_replace("[+linkprev+]",$linkprev,$tplLinkNav);
	  $pip_template = str_replace("[+linknext+]",$linknext,$pip_template);
	  $pip_template = str_replace("[+total+]",$pip_pagecount,$pip_template);
	  $pip_template = str_replace("[+current+]",$pip_currentpage,$pip_template);
          $pip_template = str_replace("[+linklast+]",$linklast,$pip_template);
	  $pip_template = str_replace("[+linkfirst+]",$linkfirst,$pip_template);
	  
          $pip_content= $pip_pagecontent[$pip_currentpage-1].$pip_template;
	}
	$modx->documentObject['content'] = $pip_content;

    break;
  default:
    return;
    break;
}