Index: trunk/lib/HTML.inc.php
===================================================================
--- trunk/lib/HTML.inc.php	(revision 591)
+++ trunk/lib/HTML.inc.php	(revision 592)
@@ -44,5 +44,6 @@
     // Use this list to warn the programmer if he uses an unsafe name.
     // http://jibbering.com/faq/names/unsafe_names.html
-    static $unsafe_form_control_names = array('accept','acceptCharset','action','addBehavior','addEventListener','addEventSource','addRepetitionBlock','addRepetitionBlockByIndex','all','appendChild','applyElement','ariaBusy','ariaChecked','ariaControls','ariaDescribability','ariaDisabled','ariaExpanded','ariaFlowto','ariaHaspopup','ariaHidden','ariaInvalid','ariaLabelledby','ariaLevel','ariaMultiselect','ariaOwns','ariaPosinset','ariaPressed','ariaReadonly','ariaRequired','ariaSecret','ariaSelected','ariaSetsize','ariaValuemax','ariaValuemin','ariaValuenow','attachEvent','attributes','ATTRIBUTE_NODE','autocomplete','baseURI','behaviorUrns','blockDiraction','blur','canHaveChildren','canHaveHTML','CDATA_SECTION_NODE','checkValidity','childElementCount','childNodes','children','className','clearAttributes','click','clientHeight','clientLeft','clientTop','clientWidth','cloneNode','COMMENT_NODE','compareDocumentPosition','componentFromPoint','constructor','contains','contentEditable','currentStyle','data','detachEvent','dir','dispatchEvent','dispatchFormChange','dispatchFormInput','document','DOCUMENT_FRAGMENT_NODE','DOCUMENT_NODE','DOCUMENT_POSITION_CONTAINED_BY','DOCUMENT_POSITION_CONTAINS','DOCUMENT_POSITION_DISCONNECTED','DOCUMENT_POSITION_FOLLOWING','DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC','DOCUMENT_POSITION_PRECEDING','DOCUMENT_TYPE_NODE','dragDrop','elements','ELEMENT_NODE','encoding','enctype','ENTITY_NODE','ENTITY_REFERENCE_NODE','fireEvent','firstChild','firstElementChild','focus','getAdjacentText','getAttribute','getAttributeNode','getAttributeNodeNS','getAttributeNS','getBoundingClientRect','getClientRects','getElementsByClassName','getElementsByTagName','getElementsByTagNameNS','getExpression','getFeature','getUserData','hasAttribute','hasAttributeNS','hasAttributes','hasChildNodes','hasOwnProperty','hideFocus','id','innerHTML','innerText','insertAdjacentElement','insertAdjacentHTML','insertAdjacentText','insertBefore','isContentEditable','isDefaultNamespace','isDefaultNamespaceURI','isDisabled','isEqualNode','isMultiLine','isPrototypeOf','isSameNode','isSupported','isTextEdit','item','lang','language','lastChild','lastElementChild','length','localName','lookupPrefix','mergeAttributes','method','moveRepetitionBlock','msBlockProgression','msBoxSizing','name','namedItem','namespaceURI','nextSibling','nodeName','nodeType','nodeValue','normalize','NOTATION_NODE','offsetHeight','offsetWidth','onabort','onactivate','onbeforeactivate','onbeforecopy','onbeforecut','onbeforedeactivate','onbeforeeditfocus','onbeforepaste','onblur','onchage','onclick','onclosecapture','oncontextmenu','oncopy','oncut','ondblclick','ondeactivate','ondrag','ondragend','ondragenter','ondragleave','ondragover','onerror','onfocus','onfocusin','onfocusout','onhelp','oninput','onkeydown','onkeypress','onkeyup','onmousedown','onmouseenter','onmouseleave','onmousemove','onmousemultiwheel','onmouseout','onmouseover','onmouseup','onmousewheel','onmove','onmoveend','onmovestart','onOffBehavior','onpaste','onpropertychange','onreadystatechange','onresize','onresizeend','onresizestart','onscroll','onsearch','onselect','onselectstart','ontimeerror','onunload','outerHTML','outerText','ownerDocument','parentNode','parentTextEdit','prefix','previousElementSibling','previousSibling','PROCESSING_INSTRUCTION_NODE','propertyIsEnumerable','querySelector','querySelectorAll','quotes','releaseCapture','removeAttribute','removeAttributeNode','removeAttributeNS','removeBehavior','removeChild','removeEventListener','removeEventSource','removeExpression','removeNode','removeRepetitionBlock','repeatMax','repeatMin','repeatStart','repetitionBlocks','repetitionIndex','repetitionTemplate','repetitionType','replace','replaceAdjacentText','replaceChild','replaceNode','reset','resetFromData','role','runtimeStyle','schemaTypeInfo','scopeName','scrollByLines','scrollByPages','scrollHeight','scrollIntoView','scrollLeft','scrollTop','scrollWidth','selectNodes','selectSingleNode','setActive','setAttributeNode','setAttributeNodeNS','setAttributeNS','setCapture','setExpression','setIdAttribute','setIdAttributeNode','setIdAttributeNS','setUserData','sourceIndex','spellcheck','style','submit','swapNode','tabIndex','tagName','tagUrn','target','templateElements','text','textContent','TEXT_NODE','title','toLocaleString','toString','uniqueID','unselectable','unwatch','urns','valueOf','watch','window');
+    static $unsafe_form_control_names = array('accept','acceptCharset','action','addBehavior','addEventListener','addEventSource','addRepetitionBlock','addRepetitionBlockByIndex','all','appendChild','applyElement','ariaBusy','ariaChecked','ariaControls','ariaDescribability','ariaDisabled','ariaExpanded','ariaFlowto','ariaHaspopup','ariaHidden','ariaInvalid','ariaLabelledby','ariaLevel','ariaMultiselect','ariaOwns','ariaPosinset','ariaPressed','ariaReadonly','ariaRequired','ariaSecret','ariaSelected','ariaSetsize','ariaValuemax','ariaValuemin','ariaValuenow','attachEvent','attributes','ATTRIBUTE_NODE','autocomplete','baseURI','behaviorUrns','blockDiraction','blur','canHaveChildren','canHaveHTML','CDATA_SECTION_NODE','checkValidity','childElementCount','childNodes','children','className','clearAttributes','click','clientHeight','clientLeft','clientTop','clientWidth','cloneNode','COMMENT_NODE','compareDocumentPosition','componentFromPoint','constructor','contains','contentEditable','currentStyle','data','detachEvent','dir','dispatchEvent','dispatchFormChange','dispatchFormInput','document','DOCUMENT_FRAGMENT_NODE','DOCUMENT_NODE','DOCUMENT_POSITION_CONTAINED_BY','DOCUMENT_POSITION_CONTAINS','DOCUMENT_POSITION_DISCONNECTED','DOCUMENT_POSITION_FOLLOWING','DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC','DOCUMENT_POSITION_PRECEDING','DOCUMENT_TYPE_NODE','dragDrop','elements','ELEMENT_NODE','encoding','enctype','ENTITY_NODE','ENTITY_REFERENCE_NODE','fireEvent','firstChild','firstElementChild','focus','getAdjacentText','getAttribute','getAttributeNode','getAttributeNodeNS','getAttributeNS','getBoundingClientRect','getClientRects','getElementsByClassName','getElementsByTagName','getElementsByTagNameNS','getExpression','getFeature','getUserData','hasAttribute','hasAttributeNS','hasAttributes','hasChildNodes','hasOwnProperty','hideFocus','id','innerHTML','innerText','insertAdjacentElement','insertAdjacentHTML','insertAdjacentText','insertBefore','isContentEditable','isDefaultNamespace','isDefaultNamespaceURI','isDisabled','isEqualNode','isMultiLine','isPrototypeOf','isSameNode','isSupported','isTextEdit','item','lang','language','lastChild','lastElementChild','length','localName',
+    'lookupPrefix','mergeAttributes','method','moveRepetitionBlock','msBlockProgression','msBoxSizing','name','namedItem','namespaceURI','nextSibling','nodeName','nodeType','nodeValue','normalize','NOTATION_NODE','offsetHeight','offsetWidth','onabort','onactivate','onbeforeactivate','onbeforecopy','onbeforecut','onbeforedeactivate','onbeforeeditfocus','onbeforepaste','onblur','onchage','onclick','onclosecapture','oncontextmenu','oncopy','oncut','ondblclick','ondeactivate','ondrag','ondragend','ondragenter','ondragleave','ondragover','onerror','onfocus','onfocusin','onfocusout','onhelp','oninput','onkeydown','onkeypress','onkeyup','onmousedown','onmouseenter','onmouseleave','onmousemove','onmousemultiwheel','onmouseout','onmouseover','onmouseup','onmousewheel','onmove','onmoveend','onmovestart','onOffBehavior','onpaste','onpropertychange','onreadystatechange','onresize','onresizeend','onresizestart','onscroll','onsearch','onselect','onselectstart','ontimeerror','onunload','outerHTML','outerText','ownerDocument','parentNode','parentTextEdit','prefix','previousElementSibling','previousSibling','PROCESSING_INSTRUCTION_NODE','propertyIsEnumerable','querySelector','querySelectorAll','quotes','releaseCapture','removeAttribute','removeAttributeNode','removeAttributeNS','removeBehavior','removeChild','removeEventListener','removeEventSource','removeExpression','removeNode','removeRepetitionBlock','repeatMax','repeatMin','repeatStart','repetitionBlocks','repetitionIndex','repetitionTemplate','repetitionType','replace','replaceAdjacentText','replaceChild','replaceNode','reset','resetFromData','role','runtimeStyle','schemaTypeInfo','scopeName','scrollByLines','scrollByPages','scrollHeight','scrollIntoView','scrollLeft','scrollTop','scrollWidth','selectNodes','selectSingleNode','setActive','setAttributeNode','setAttributeNodeNS','setAttributeNS','setCapture','setExpression','setIdAttribute','setIdAttributeNode','setIdAttributeNS','setUserData','sourceIndex','spellcheck','style','submit','swapNode','tabIndex','tagName','tagUrn','target','templateElements','text','textContent','TEXT_NODE','title','toLocaleString','toString','uniqueID','unselectable','unwatch','urns','valueOf','watch','window');
 
     /**
Index: trunk/lib/Lock.inc.php
===================================================================
--- trunk/lib/Lock.inc.php	(revision 591)
+++ trunk/lib/Lock.inc.php	(revision 592)
@@ -371,5 +371,5 @@
             $db->query("
                 DELETE FROM " . $db->escapeString($this->getParam('db_table')) . "
-                WHERE DATE_ADD(lock_datetime, INTERVAL '" . $this->getParam('auto_timeout') . "' SECOND) < NOW()
+                WHERE DATE_ADD(lock_datetime, INTERVAL '" . $db->escapeString($this->getParam('auto_timeout')) . "' SECOND) < NOW()
             ");
             $_timeout_run = true;
@@ -388,5 +388,5 @@
 
     /**
-     * Print error page.
+     * Print error page. This method is probably not used anywhere; instead, we're including this via the template codebase/services/templates/lock.ihtml
      */
     public function printErrorHTML()
@@ -399,6 +399,6 @@
             <div id="sc-msg" class="sc-msg">
                 <div class="sc-msg-notice">
-                <?php printf(_("The record %s is currently being edited by %s (%d minutes elapsed). You cannot modify the record while it is locked by another user."),
-                    $this->getTitle(),
+                <?php printf(_("<em>%s</em> is currently being edited by %s (%d minutes elapsed). You cannot modify this database record while it is locked. Please try again later."),
+                    ucfirst($this->getTitle()),
                     $this->getEditor(),
                     date('i', $this->getSecondsElapsed() + 60)
@@ -450,6 +450,6 @@
     public function getSecondsElapsed()
     {
-        if (isset($this->data['lock_datetime']) && strtotime($this->data['lock_datetime']) < time()) {
-            return time() - strtotime($this->data['lock_datetime']);
+        if (isset($this->data['lock_datetime']) && false !== ($lock_timestamp = strtotime($this->data['lock_datetime'])) && $lock_timestamp < time()) {
+            return time() - $lock_timestamp;
         } else {
             return 0;
