diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
index 9cae29c..6735301 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
@@ -159,7 +159,16 @@ function getEditPage($oDocument) {
     $sToRender .= "<td><input type=\"image\" src=\"$default->graphicsUrl/widgets/edit.gif\" border=\"0\"></td>\n";
     $sToRender .= "<td><a href=\"" . $_SERVER["PHP_SELF"] . "?fDocumentID=" . $oDocument->getID() . "&fForDownload=1\"><img src=\"$default->graphicsUrl/widgets/download.gif\" border=\"0\" /></a></td>\n";
     $sToRender .= "<td><a href=\"" . generateControllerLink("emailDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/email.gif\" border=\"0\" /></a></td>\n";    
-    $sToRender .= "<td><a href=\"" . generateControllerLink("deleteDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/delete.gif\" border=\"0\" /></a></td>\n";   
+    $sToRender .= "<td><a href=\"" . generateControllerLink("deleteDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/delete.gif\" border=\"0\" /></a></td>\n";
+    
+    // display the check in button if the document is checked out
+    if ($oDocument->getIsCheckedOut()) {
+        $sToRender .= "<td><a href=\"" . generateControllerLink("checkInDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/checkin.gif\" border=\"0\" /></a></td>\n";
+    // otherwise display the check out button
+    } else {
+        $sToRender .= "<td><a href=\"" . generateControllerLink("checkOutDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/checkout.gif\" border=\"0\" /></a></td>\n";
+    }
+    
     $sToRender .= "</tr>\n";
     $sToRender .= "</table>\n";