Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 6443)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -3457,29 +3457,39 @@
 		if (ob_get_level()==0) {
 			ob_start();
 		}
+		$debug = '';
 
-		if ($brOrHeader && !t3lib_div::testInt($brOrHeader))	{
-			echo '<table class="typo3-debug" border="0" cellpadding="0" cellspacing="0" bgcolor="white" style="border:0px; margin-top:3px; margin-bottom:3px;"><tr><td style="background-color:#bbbbbb; font-family: verdana,arial; font-weight: bold; font-size: 10px;">'.htmlspecialchars((string)$brOrHeader).'</td></tr><tr><td>';
-		} elseif ($brOrHeader<0)	{
-			for($a=0;$a<abs(intval($brOrHeader));$a++){echo '<br />';}
-		}
-
 		if (is_array($var))	{
-			t3lib_div::print_array($var);
+			$debug .= t3lib_div::view_array($var);
 		} elseif (is_object($var))	{
-			echo '<b>|Object:<pre>';
-			print_r($var);
-			echo '</pre>|</b>';
+			$debug .= '<b>|Object:<pre>';
+			$debug .= print_r($var, TRUE);
+			$debug .= '</pre>|</b>';
 		} elseif ((string)$var!='')	{
-			echo '<b>|'.htmlspecialchars((string)$var).'|</b>';
+			$debug .= '<b>|'.htmlspecialchars((string)$var).'|</b>';
 		} else {
-			echo '<b>| debug |</b>';
+			$debug .= '<b>| debug |</b>';
 		}
-
-		if ($brOrHeader && !t3lib_div::testInt($brOrHeader))	{
-			echo '</td></tr></table>';
-		} elseif ($brOrHeader>0)	{
-			for($a=0;$a<intval($brOrHeader);$a++){echo '<br />';}
+		if (intval($GLOBALS['TYPO3_CONF_VARS']['SYS']['debugUseFlashMessages']) === 1) {
+			$flashMessage = t3lib_div::makeInstance(
+				't3lib_FlashMessage',
+				$debug,
+				'DEBUG: ' . ($brOrHeader === 0 ? '' : htmlspecialchars($brOrHeader)) ,
+				t3lib_FlashMessage::INFO
+			);
+			t3lib_FlashMessageQueue::addMessage($flashMessage);
+		} else {
+			echo '<table class="typo3-debug" border="0" cellpadding="0" cellspacing="0" bgcolor="white" style="border:0px; margin-top:3px; margin-bottom:3px;">
+				<tr>
+					<td style="background-color:#bbbbbb; font-family: verdana,arial; font-weight: bold; font-size: 10px;">' .
+						($brOrHeader === 0 ? '' : htmlspecialchars($brOrHeader)) . '
+					</td>
+				</tr>
+				<tr>
+					<td>' . $debug . '
+					</td>
+				</tr>
+				</table>';
 		}
 	}
 
Index: typo3/template.php
===================================================================
--- typo3/template.php	(revision 6443)
+++ typo3/template.php	(working copy)
@@ -1858,6 +1858,10 @@
 		$this->pageRenderer->loadPrototype();
 		$this->loadJavascriptLib('js/iecompatibility.js');
 		$this->moduleTemplate = $this->getHtmlTemplate($filename);
+
+		if (intval($GLOBALS['TYPO3_CONF_VARS']['SYS']['debugUseFlashMessages']) !== -1) {
+			$GLOBALS['TYPO3_CONF_VARS']['SYS']['debugUseFlashMessages'] = 1;
+		}
 	}
 
 	/**