Add formEl settings option - used to specify form for hashcash widget…

… in case if widget is not placed inside form it is used for.

README.md

@@ -58,6 +58,7 @@ $.fn.hashcash([options]) where *options* can be:
         progressCb: null,
         doneCb: null,
         targetEl: null,
+        formEl: null,
         hashcashInputName: 'hashcashid',
         lang: {
             screenreader_notice: 'Click this to unlock submit button',
@@ -84,7 +85,10 @@ to the form.
 *doneCb* - function assigned to this option will be called when calculation will be finished.
 
 *targetEl* - used to specify custom element to add widget to. By default widget added
-right before button it is attached to.
+right before button it is attached to. Can be either jquery selector string or jquery element.
+
+*formEl* - used to specify form to attach onSubmit events and hidden hashcashid field. By default
+looks for parent of submit button widget is attached to. Can be jquery selector string or jquery element.
 
 *hashcashInputName* - used to override default "hashcashid" hidden input element to pass
 work id for server-side verification.

jquery.hashcash.io.js

@@ -51,6 +51,7 @@
             progressCb: null,
             doneCb: null,
             targetEl: null,
+            formEl: null,
             hashcashInputName: 'hashcashid',
             lang: {
                 screenreader_notice: 'Click this to unlock submit button',
@@ -69,7 +70,14 @@
                 throw new Error('Hashcash.IO key is required. Get it at https://hashcash.io');
             }
 
-            var $form = $el.parents('form').eq(0);
+            var $form;
+
+            if (! settings.formEl) {
+                $form = $el.parents('form').eq(0);
+            }
+            else {
+                $form = $(settings.formEl);
+            }
 
             if (! $form) {
                 throw new Error('Hashcash plugin requires button to be with in <form> element.');

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jquery.hashcash.io",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "jQuery Hashcash.io plugin",
   "main": "jquery.hashcash.io.js",
   "scripts": {