+        self.logDir = ''
+        self.logFiles = []
+        self.currentFilePath = ''
+        self.resultsFrame = None
+        
+        if os.path.exists(LOGS_DIR) :
+            self.chooseDirDialog(dir=LOGS_DIR)
+    
+    def configureStretching(self) :
+        top=self.winfo_toplevel()
+        top.rowconfigure(0, weight=1)
+        top.columnconfigure(0, weight=1)
+        
+        self.grid(sticky=N+S+E+W, padx=10, pady=10)
+        self.rowconfigure(0, weight=1)
+        self.columnconfigure(0, weight=1)
+    
+    def createWidgets(self) :
+        # zone d'affichage des données'
+        self.dataFrame = df = Frame(self)
+        
+        self.identFrame = Identification(df)
+        self.identFrame.grid(sticky=NW)
+        
+        # barre de boutons
+        self.btnFrame = bf = Frame(self)
+        bf.grid(row=1, column=0, sticky=W+S+E)
+        bf.rowconfigure(0, weight=1)
+        for i in range(3) :
+            bf.columnconfigure(i, weight=1)        
+
+        self.chooseLogDir = Button(bf, text="Parcourir…", command=self.chooseDirDialog)
+        self.chooseLogDir.grid(row=0, column=0, sticky=W)
+        
+        self.nav = Navbar(bf, incCallback=self.loadLogFile, decCallback=self.loadLogFile)
+
+        self.quitButton = Button(bf, text='Terminer', command=self.quit)
+        self.quitButton.grid(row=0, column=2, sticky=E)
+    
+    def chooseDirDialog(self, dir=None) :
+        if dir is None :
+            self.logDir = tkFileDialog.askdirectory(title='Sélectionnez un dossier de fichiers de logs')
+        else :
+            self.logDir = dir
+        if self.logDir :
+            self.logFiles = glob(pjoin(self.logDir, '*.log'))
+            self._cleanupJunkFiles()
+            self.logFiles.sort()
+            self.logFiles.reverse()
+            self.dataFrame.grid(row=0, column=0, sticky=NW)
+            self.nav.setSize(len(self.logFiles))
+            self.nav.grid(row=0, column=1)
+            self.loadLogFile(self.nav)
+    
+    def _cleanupJunkFiles(self) :
+        files = []
+        while self.logFiles :
+            f = self.logFiles.pop()
+            if not getsize(f) :
+                os.remove(f)
+                continue
+            else :
+                of = open(f)
+                lfa = LogFileAnalyser(of)
+                if lfa.getLastEventTicks() is None :
+                    of.close()
+                    os.remove(f)
+                    continue
+                else :
+                    of.close()
+                
+                files.append(f)
+        
+        self.logFiles = files
+        
+    
+    def loadLogFile(self, nav) :
+        index = nav.index - 1
+        filepath = self.logFiles[index]
+        self.currentFilePath = filepath
+        lfa = LogFileAnalyser(self.currentFilePath)
+        self.identFrame.refresh(lfa)
+        if self.resultsFrame :
+            self.resultsFrame.destroy()
+        self.resultsFrame = ResultsFrame(self.dataFrame)
+        self.resultsFrame.layResults(lfa)
+        lfa.close()
+        self.resultsFrame.grid()
+
+
+class Navbar(Frame) :
+    def __init__(self, master=None, size=1, incCallback=None, decCallback=None) :
+        Frame.__init__(self, master)
+        self.caption = StringVar()
+        self.createWidgets()
+        self.setSize(size)
+        self.incCallback = incCallback if incCallback else lambda x : None
+        self.decCallback = decCallback if decCallback else lambda x : None
+        self.caption.set('%d / %d' % (self.index, self.to))
+    
+    def createWidgets(self) :
+        self.backBtn = Button(self,
+                              text='◀',
+                              command = self.dec
+                              )
+        self.backBtn.grid(row=0, column=0)
+        
+        self.lbl = Label(self, textvariable=self.caption)
+        self.lbl.grid(row=0, column=1)
+
+        self.nextBtn = Button(self,
+                              text='▶',
+                              command = self.inc)
+        self.nextBtn.grid(row=0, column=2)
+    
+    def refreshStates(self) :
+        if self.index == self.from_ :
+            self.backBtn.configure(state=DISABLED)
+        else :
+            self.backBtn.configure(state=NORMAL)
+
+        if self.index < self.to :
+            self.nextBtn.configure(state=NORMAL)
+        else :
+            self.nextBtn.configure(state=DISABLED)
+
+        self.caption.set('%d / %d' % (self.index, self.to))
+        
+    
+    def dec(self) :
+        self.index = self.index - 1
+        self.refreshStates()
+        self.decCallback(self)
+    
+    def inc(self) :
+        self.index = self.index + 1
+        self.refreshStates()
+        self.incCallback(self)
+
+    def setSize(self, size) :
+        self.from_ = 1
+        self.to = size
+        self.index = 1
+        self.refreshStates()
+
+
+class Identification(Frame) :
+    def __init__(self, master=None) :
+        Frame.__init__(self, master)
+        self.fileName = StringVar()
+        self.patientName = StringVar()
+        self.createWidgets()
+    
+    #def setFileName(self, name) :
+    #    self.fileName.set(name)
+    
+    def refresh(self, lfa) :
+        filename = basename(lfa.logfile.name)
+        self.fileName.set(filename)
+        metadata = lfa.getMetadata()
+        self.patientName.set(metadata.get('PatientName', ''))
+        self.commentsText.delete(1.0, END)
+        self.commentsText.insert(1.0, metadata.get('Comments', ''))