diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkBL.php b/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkBL.php
new file mode 100644
index 0000000..219f465
--- /dev/null
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkBL.php
@@ -0,0 +1,74 @@
+<?php
+
+/**
+* Business logic for unlinking a parent document from a child documenbt
+*
+* Expected form variables:
+*	$fDocumentLinkID - primary key of document link to delete
+*	$fChildDocumentID - primary key of child document to which parent document is linked
+*	$fParentDocumentID - primary key of parent document
+*
+* @author Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
+* @date 22 May 2003
+*
+*/
+
+
+require_once("../../../../config/dmsDefaults.php");
+
+if (checkSession()) {
+	require_once("$default->fileSystemRoot/lib/security/permission.inc");
+	require_once("$default->fileSystemRoot/lib/documentmanagement/Document.inc");	
+	require_once("$default->fileSystemRoot/lib/documentmanagement/DocumentLink.inc");
+	require_once("$default->fileSystemRoot/presentation/Html.inc");
+	require_once("removeDocumentLinkUI.inc");
+	
+	
+	if (Permission::userHasDocumentWritePermission($fParentDocumentID)) {
+		if (isset($fForDelete)) {
+			//deleting a document link
+			$oDocumentLink = DocumentLink::get($fDocumentLinkID);
+			if ($oDocumentLink->delete()) {
+				redirect("$default->rootUrl/control.php?action=viewDocument&fDocumentID=$fParentDocumentID");				
+			} else {
+				//an error occured whilst trying to delete the document link
+				require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
+										
+				$oParentDocument = Document::get($fParentDocumentID);
+				$oChildDocument = Document::get($fChildDocumentID);
+			
+				$oPatternCustom = & new PatternCustom();
+				$oPatternCustom->setHtml(getPage($oParentDocument->getName(), $oChildDocument->getName(), $fParentDocumentID));
+				$main->setCentralPayload($oPatternCustom);
+				$main->setFormAction($_SERVER["PHP_SELF"] . "?fDocumentLinkID=$fDocumentLinkID&fParentDocumentID=$fParentDocumentID&fChildDocumentID=$fChildDocumentID&fForDelete=1");
+				$mail->setErrorMessage("An error occured whilst attempting to delete the link between the two documents");	
+				$main->render();				
+			}			
+		} else {
+			//user has document write permission and can therefore remove the
+			//link between the two documents		
+			require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
+										
+			$oParentDocument = Document::get($fParentDocumentID);
+			$oChildDocument = Document::get($fChildDocumentID);
+			
+			$oPatternCustom = & new PatternCustom();
+			$oPatternCustom->setHtml(getPage($oParentDocument->getName(), $oChildDocument->getName(), $fParentDocumentID));
+			$main->setCentralPayload($oPatternCustom);
+			$main->setFormAction($_SERVER["PHP_SELF"] . "?fDocumentLinkID=$fDocumentLinkID&fParentDocumentID=$fParentDocumentID&fChildDocumentID=$fChildDocumentID&fForDelete=1");	
+			$main->render();	
+		}
+	} else {
+		//user does not have permission to be here
+		require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
+										
+		$oPatternCustom = & new PatternCustom();
+		$oPatternCustom->setHtml("");
+		$main->setCentralPayload($oPatternCustom);
+		$main->setErrorMessage("You do not have permission to delete links between documents");			
+		$main->render();
+	}
+}
+
+
+?>
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diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkUI.inc
new file mode 100644
index 0000000..d0b0055
--- /dev/null
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/removeDocumentLinkUI.inc
@@ -0,0 +1,43 @@
+<?php
+/**
+* Presentation logic for removing a link between two documents
+*
+* @author Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
+* @date 22 May 2003
+*/
+
+function renderHeading() {
+    global $default;
+    $sSectionName = $default->siteMap->getSectionName(substr($_SERVER["PHP_SELF"], strlen($default->rootUrl), strlen($_SERVER["PHP_SELF"])));
+    $sColor = $default->siteMap->getSectionColour($sSectionName, "th");
+    $sToRender  = "<table border=\"0\" width=\"600\">\n";
+    $sToRender .= "<tr align=\"left\"><th class=\"sectionHeading\" bgcolor=\"$sColor\"><font color=\"ffffff\">Unlink document</font></th></tr>\n";
+    $sToRender .= "<tr/>\n";
+    $sToRender .= "<tr/>\n";
+    $sToRender .= "</table>\n";
+    return $sToRender;
+}
+
+function getPage($sParentDocumentName, $sChildDocumentName, $iParentDocumentID) {
+	global $default;
+	$sToRender = renderHeading();
+	$sToRender .= "<table>\n";
+	$sToRender .= "<tr>\n";	
+	$sToRender .= "<td>You have chosen to delete the link between the document '$sParentDocumentName' and the document '$sChildDocumentName'</td>\n";
+	$sToRender .= "</tr>\n";
+	$sToRender .= "<tr>\n";	
+	$sToRender .= "<td>&nbsp</td>\n";
+	$sToRender .= "</tr>\n";
+	$sToRender .= "<td>Select 'Delete' to confirm or 'Cancel' to cancel</td>\n";
+	$sToRender .= "</tr>\n";	
+	$sToRender .= "<tr>\n";	
+	$sToRender .= "<td>&nbsp</td>\n";
+	$sToRender .= "</tr>\n";	;
+	$sToRender .= "<tr>\n";
+	$sToRender .= "<td><table><tr><td><input type=\"image\" src=\"$default->graphicsUrl/widgets/delete.gif\" border=\"0\"></td> <td><a href=\"$default->rootUrl/control.php?action=viewDocument&fDocumentID=" . $iParentDocumentID . "\"><img src=\"$default->graphicsUrl/widgets/cancel.gif\" border=\"0\"></a></td></tr></table></td>";	
+	$sToRender .= "</tr>";
+	$sToRender .= "</table>";
+	return $sToRender;
+}
+
+?>
\ No newline at end of file