Improved form in stream and corrected a bug in web.py

stream/index.html

@@ -8,7 +8,7 @@
             <p>
                 You can try with a different resolution (between 1 and 25)
                 <form action="" method="GET">
-                    Resolution : <input id="res" name="res" type="number" min="1" max="25" value="5" length=10/>
+                    Resolution : <input id="res" name="res" type="number" min="1" max="25" value="%(res)s" length=10/>
                     <input type="submit" value="Go !" />
                 </form>
             </p>

stream/index.py

@@ -42,7 +42,7 @@ def main():
     body.add_child(jsIncludes)
     jsIncludes.add_child(mainJs)
 
-    page.print()
+    page.print({'res' : res})
 
 if __name__ == '__main__':
     main()

webtools/Web.py

@@ -40,7 +40,7 @@ class Element:
         self.children.append(child)
 
     def print(self, format = {}):
-        self.open()
+        self.open(format)
         for i in self.children:
                 i.print(format)
-        self.close()
+        self.close(format)