Index: class.t3lib_parsehtml.php
===================================================================
RCS file: /cvsroot/typo3/TYPO3core/t3lib/class.t3lib_parsehtml.php,v
retrieving revision 1.24
diff -u -r1.24 class.t3lib_parsehtml.php
--- class.t3lib_parsehtml.php	19 Jun 2005 22:48:47 -0000	1.24
+++ class.t3lib_parsehtml.php	18 Oct 2005 07:39:14 -0000
@@ -599,6 +599,17 @@
 	 */
 	function HTMLcleaner($content, $tags=array(),$keepAll=0,$hSC=0,$addConfig=array())	{
 		$newContent = array();
+			//protect HTML comments from getting cleaned
+		$commentsFound = array();
+		$comments      = array();
+		preg_match_all('/<!--.*?-->/s', $content, $commentsFound);
+		$i = 0;
+		foreach($commentsFound[0] as $comment) {			
+			$comments[$i] = $comment;		
+			$content = str_replace($comment, '###'.$i.'###', $content);			
+			$i++;
+		}
+		
 		$tokArr = explode('<',$content);
 		$newContent[] = $this->processContent(current($tokArr),$hSC,$addConfig);
 		next($tokArr);
@@ -782,8 +793,15 @@
 				unset($newContent[$pKey]);
 			}
 		}
-
-		return implode('',$newContent);
+		
+			//replace markers with the according comments to preserve HTML comments (see the beginning of this function for the corresponding code)
+		$newContent = implode('',$newContent);
+		if(!empty($comments)) {
+			foreach($comments as $k => $comment) {
+				$newContent = str_replace('###'.$k.'###', $comment, $newContent);	
+			}
+		}
+		return $newContent;
 	}
 
 	/**