Index: branches/unlabeled/unlabeled-1.155.2/core/kernel/application.php
===================================================================
diff -u -N -r5506 -r5629
--- branches/unlabeled/unlabeled-1.155.2/core/kernel/application.php	(.../application.php)	(revision 5506)
+++ branches/unlabeled/unlabeled-1.155.2/core/kernel/application.php	(.../application.php)	(revision 5629)
@@ -189,6 +189,8 @@
 	{
 		if($this->InitDone) return false;
 
+		ob_start(); // collect any output from method (other then tags) into buffer
+		
 		if(defined('DEBUG_MODE') && $this->isDebugMode() && constOn('DBG_PROFILE_MEMORY')) {
 			$this->Debugger->appendMemoryUsage('Application before Init:');
 		}
@@ -258,7 +260,12 @@
 		$this->HandleEvent( new kEvent('visits:OnRegisterVisit') );
 
 		$this->ValidateLogin();
-
+		
+		if ($this->UseOutputCompression()) {
+			header('Content-Encoding: gzip');
+			safeDefine('DBG_COMPRESS_OUTPUT', 1);
+		}
+		
 		if($this->isDebugMode()) {
 			$this->Debugger->profileFinish('kernel4_startup');
 		}
@@ -676,8 +683,14 @@
 		}
 
 		//eval("?".">".$this->HTML);
-
-		echo $this->HTML;
+		
+		$this->HTML = ob_get_clean().$this->HTML;
+		if ($this->isDebugMode()) {
+			$this->HTML .= $this->Debugger->printReport(true);
+		}
+			
+		echo $this->UseOutputCompression() ? gzencode($this->HTML) : $this->HTML;
+		
 		$this->UpdateCache();
 
 		flush();
@@ -695,6 +708,17 @@
 		//$this->SaveBlocksCache();
 	}
 
+	/**
+	 * Checks if output compression options is available
+	 *
+	 * @return string
+	 */
+	function UseOutputCompression()
+	{
+//		return false;
+		return $this->ConfigValue('UseOutputCompression') && function_exists('gzencode') && strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip');
+	}
+	
 	function SaveBlocksCache()
 	{
 		/*if (constOn('EXPERIMENTAL_PRE_PARSE')) {