fix #187: can't change receive symbol in number box

pd/nw/dialog_gatom.html

@@ -53,7 +53,7 @@
             </td>
             <td colspan="3">
               <input type="text" id="send_symbol" name="send_symbol"
-                     onchange="update_attr(this)">
+                     onchange="update_attr(this);">
             </td>
           </tr>
           <tr>
@@ -63,7 +63,8 @@
               </label>
             </td>
             <td colspan="3">
-            <input type="text" id="receive_symbol" name="receive_symbol">
+            <input type="text" id="receive_symbol" name="receive_symbol"
+                   onchange="update_attr(this);">
             </td>
           </tr>
           <tr>