Make filename parameter optional

Change-Id: Ie957dc5549be47ec55d28b1432b774ffa44bde21
diff --git a/plugin/templates/export.html b/plugin/templates/export.html
index 404a7cf..b6979db 100644
--- a/plugin/templates/export.html
+++ b/plugin/templates/export.html
@@ -21,8 +21,10 @@
   <br/>
   <br/>
   <br/>
+  <!--
   <label for="fname">Dateiname:</label>
   <input type="text" id="fname" name="fname" required> <br/>
+-->
   Dateiformat: 
   <input type="radio" id="formatjson" name="format" value="json">  
   <label for="formatjson">JSON</label>
@@ -43,4 +45,4 @@
  <button> Exportieren </button> 
 </form>
 </body>
-</html>
\ No newline at end of file
+</html>