some general source code tweaks

src/global.h

@@ -29,27 +29,51 @@
 
 namespace Global
 {
+	// currently active screen (displayed in main window)
 	extern BasicScreen *myScreen;
-	extern BasicScreen *myOldScreen;	// for info, lyrics, popups
-	extern BasicScreen *myPrevScreen;	// "real" screen switching (browser, search, etc.)
-	extern BasicScreen *myLockedScreen;     // points at the screen that was locked (or is null if no screen is locked)
-	extern BasicScreen *myInactiveScreen;   // points at inactive screen, if locking was enabled and two screens are displayed
 	
+	// for info, lyrics, popups to remember which screen return to
+	extern BasicScreen *myOldScreen;
+	
+	// "real" screen switching (browser, search, etc.)
+	extern BasicScreen *myPrevScreen;
+	
+	// points at the screen that was locked (or is null if no screen is locked)
+	extern BasicScreen *myLockedScreen;
+	
+	// points at inactive screen, if locking was enabled and two screens are displayed
+	extern BasicScreen *myInactiveScreen; 
+	
+	// header window (above main window)
 	extern Window *wHeader;
+	
+	// footer window (below main window)
 	extern Window *wFooter;
 	
+	// Y coordinate of top of main window
 	extern size_t MainStartY;
+	
+	// height of main window
 	extern size_t MainHeight;
 	
-	extern bool MessagesAllowed;
+	// indicates whether messages from ShowMessage function should be shown
+	extern bool ShowMessages;
+	
+	// indicates whether seeking action in currently in progress
 	extern bool SeekingInProgress;
+	
+	// indicates whether header should be immediately repainted
 	extern bool RedrawHeader;
+	
+	// indicates whether statusbar should be immediately repainted
 	extern bool RedrawStatusbar;
 	
+	// string that represents volume in right top corner. being global
+	// to be used for calculating width offsets in various files.
 	extern std::string VolumeState;
 	
+	// global timer
 	extern timeval Timer;
 }
 
 #endif
-