diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
index 6941a61..a72e773 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
@@ -64,7 +64,7 @@ function renderCheckInPage($oDocument) {
     $sToRender .= "<tr><td>\n";
   
     // if collaboration has started then revisions are minor
-    if (Document::documentCollaborationStarted($oDocument->getID())) {
+    if (DocumentCollaboration::documentCollaborationStarted($oDocument->getID())) {
         $sToRender .= "<input type=\"hidden\" name=\"fCheckInType\" value=\"minor\"/>\n";
     // else there is no collaboration, revisions are major (or override?)        
     } else {
diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
index 021cafb..d9d4753 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
@@ -210,12 +210,12 @@ function getEditPage($oDocument) {
     $sToRender .= "\t\t<td>" . renderEditableDocumentRouting($oDocument) . "</td>\n";
     $sToRender .= "\t</tr>";
     $sToRender .= "\t<tr>\n";
-	if ($oDocument->hasCollaboration() && (!Document::documentCollaborationStarted($oDocument->getID())) && ($_SESSION["userID"] == $oDocument->getCreatorID())) {
+	if ($oDocument->hasCollaboration() && (!DocumentCollaboration::documentCollaborationStarted($oDocument->getID())) && ($_SESSION["userID"] == $oDocument->getCreatorID())) {
 		//if not all collaboration steps have been set, then you cannot start the collaboration process
 		//only the creator of the document can start the collaboration process		
 		$sToRender .= "\t\t<td><a href=" . $_SERVER['PHP_SELF'] . "?fDocumentID=" . $oDocument->getID() . "&fBeginCollaboration=1><img src=\"$default->graphicsUrl/widgets/begin.gif\" border=\"0\"/></a>";
 		$sToRender .= "</td>\n";
-	} else if (Document::userIsPerformingCurrentCollaborationStep($oDocument->getID())) {
+	} else if (DocumentCollaboration::userIsPerformingCurrentCollaborationStep($oDocument->getID())) {
 		//if the current user is responsible for an active step in the collaboration process		
 		$sToRender .= "\t\t<td><table border=\"0\"><tr>\n";
 		$sToRender .= "\t\t<td><b>You currently have an active role<br> in the collaboration process</b></td>\n";				
@@ -224,12 +224,12 @@ function getEditPage($oDocument) {
 		$sToRender .= "\t\t</tr></table></td>\n";
 	}
     
-    if (!Document::documentIsPendingWebPublishing($iDocumentID)) {
+    if (!DocumentCollaboration::documentIsPendingWebPublishing($iDocumentID)) {
         // only display for unpublished documents        
         // if there is collaboration
         if ($oDocument->hasCollaboration()) {
             // only display publish button if collaboration is complete and you're the last user in the collaboration process
-            if (Document::documentCollaborationDone($oDocument->getID()) && ($_SESSION["userID"] == Document::getLastCollaboratorID($iDocumentID))) {
+            if (DocumentCollaboration::documentCollaborationDone($oDocument->getID()) && ($_SESSION["userID"] == DocumentCollaboration::getLastCollaboratorID($iDocumentID))) {
                 $sToRender .= "<td><a href=" . $_SERVER['PHP_SELF'] . "?fDocumentID=" . $oDocument->getID() . "&fForPublish=1><img src=\"$default->graphicsUrl/widgets/publish.gif\" border=\"0\"/></a></td>\n";
             }
         } else if ($_SESSION["userID"] == $oDocument->getCreatorID()) {
@@ -284,7 +284,7 @@ function getViewPage($oDocument) {
     $sToRender .= "\t<tr>\n";
     $sToRender .= "\t\t<td>" . renderNonEditableDocumentRouting($oDocument) . "</td>\n";
     $sToRender .= "\t</tr>";
-	if (Document::userIsPerformingCurrentCollaborationStep($oDocument->getID())) {
+	if (DocumentCollaboration::userIsPerformingCurrentCollaborationStep($oDocument->getID())) {
 		//if the current user is responsible for an active step in the collaboration process		
 		$sToRender .= "\t\t<tr><td><table border=\"0\"><tr>\n";
 		$sToRender .= "\t\t<td><b>You currently have an active role<br> in the collaboration process</b></td>\n";				
diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/webDocumentBL.php b/presentation/lookAndFeel/knowledgeTree/documentmanagement/webDocumentBL.php
index 4442028..5de7499 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/webDocumentBL.php
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/webDocumentBL.php
@@ -4,6 +4,7 @@ require_once("../../../../config/dmsDefaults.php");
 require_once("$default->fileSystemRoot/lib/email/Email.inc");
 require_once("$default->fileSystemRoot/lib/foldermanagement/Folder.inc");
 require_once("$default->fileSystemRoot/lib/documentmanagement/Document.inc");
+require_once("$default->fileSystemRoot/lib/documentmanagement/DocumentCollaboration.inc");
 require_once("$default->fileSystemRoot/lib/web/WebDocument.inc");
 require_once("$default->fileSystemRoot/lib/web/WebSite.inc");
 require_once("$default->fileSystemRoot/lib/visualpatterns/PatternCustom.inc");