Shorter plugin initialization and set reset/clear form options throug…

…h data attributes

Copied from #400
Thanks to @izziaraffaele

jquery.form.js

@@ -72,7 +72,7 @@ feature.formdata = window.FormData !== undefined;
 var hasProp = !!$.fn.prop;
 
 // attr2 uses prop when it can but checks the return type for
-// an expected string.  this accounts for the case where a form 
+// an expected string.  this accounts for the case where a form
 // contains inputs with names like "action" or "method"; in those
 // cases "prop" returns the element
 $.fn.attr2 = function() {
@@ -89,8 +89,13 @@ $.fn.attr2 = function() {
 /**
  * ajaxSubmit() provides a mechanism for immediately submitting
  * an HTML form using AJAX.
+ *
+ * @param  object|string   options  jquery.form.js parameters or custom url for submission
+ * @param  object          data     extraData
+ * @param  string          dataType ajax dataType
+ * @param  function        onSuccess ajax success callback function
  */
-$.fn.ajaxSubmit = function(options) {
+$.fn.ajaxSubmit = function(options, data, dataType, onSuccess) {
     /*jshint scripturl:true */
 
     // fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
@@ -103,8 +108,20 @@ $.fn.ajaxSubmit = function(options) {
 
     if (typeof options == 'function') {
         options = { success: options };
-    }
-    else if ( options === undefined ) {
+
+    } else if ( typeof options == 'string' || ( options === false && arguments.length > 0 ) ) {
+        options = {
+        	'url' : options,
+        	'data' : data,
+        	'dataType' : dataType,
+        };
+
+        if(typeof onSuccess == 'function')
+        {
+        	options.success = onSuccess;
+        }
+
+    } else if ( options === undefined ) {
         options = {};
     }
 
@@ -460,17 +477,17 @@ $.fn.ajaxSubmit = function(options) {
 
         var CLIENT_TIMEOUT_ABORT = 1;
         var SERVER_ABORT = 2;
-                
+
         function getDoc(frame) {
             /* it looks like contentWindow or contentDocument do not
              * carry the protocol property in ie8, when running under ssl
              * frame.document is the only valid response document, since
              * the protocol is know but not on the other two objects. strange?
              * "Same origin policy" http://en.wikipedia.org/wiki/Same_origin_policy
              */
-            
+
             var doc = null;
-            
+
             // IE8 cascading access check
             try {
                 if (frame.contentWindow) {
@@ -506,8 +523,8 @@ $.fn.ajaxSubmit = function(options) {
         // take a breath so that pending repaints get some cpu time before the upload starts
         function doSubmit() {
             // make sure form attrs are set
-            var t = $form.attr2('target'), 
-                a = $form.attr2('action'), 
+            var t = $form.attr2('target'),
+                a = $form.attr2('action'),
                 mp = 'multipart/form-data',
                 et = $form.attr('enctype') || $form.attr('encoding') || mp;
 
@@ -618,7 +635,7 @@ $.fn.ajaxSubmit = function(options) {
             if (xhr.aborted || callbackProcessed) {
                 return;
             }
-            
+
             doc = getDoc(io);
             if(!doc) {
                 log('cannot access response document');
@@ -847,8 +864,20 @@ $.fn.ajaxSubmit = function(options) {
  * passes the options argument along after properly binding events for submit elements and
  * the form itself.
  */
-$.fn.ajaxForm = function(options) {
-    options = options || {};
+$.fn.ajaxForm = function(options, data, dataType, onSuccess) {
+	if (typeof options == 'string' || (options === false && arguments.length > 0)) {
+        options = {
+        	'url' : options,
+        	'data' : data,
+        	'dataType' : dataType,
+        };
+
+        if (typeof onSuccess == 'function') {
+        	options.success = onSuccess;
+        }
+    }
+
+	options = options || {};
     options.delegation = options.delegation && $.isFunction($.fn.on);
 
     // in jQuery 1.3+ we can fix mistakes with the ready state
@@ -964,7 +993,7 @@ $.fn.formToArray = function(semantic, elements, filtering) {
     if (!els || !els.length) {
         return a;
     }
-    
+
     if ($.isFunction(filtering)) {
     	var els = $.map(els, filtering);
     }