A jQuery plugin that gets the forms data as an Object.

jQuery.getFormData.func.js

$.fn.hasAttr=function(a){var b=$(this).attr(a);return void 0!==typeof b&&b!==!1};
$.fn.getFormData = function(){
  var data = {};
  $(this).find("input, select, textarea").each(function(i, input){
    var $input = $(input);
    if($input.hasAttr("name")){
      if($input.attr("type") && $input.hasAttr("type") && $input.attr("type").toLowerCase() == "checkbox"){
        if($input.is(":checked")){
          data[$input.attr("name")] = true;
        } else {
          data[$input.attr("name")] = false;
        }
      } else if(
        $input.attr("type") &&
        $input.hasAttr("type") &&
        $input.attr("type").toLowerCase() == "radio"
      ){
        if($input.is(":checked")){
          data[$input.attr("name")] = $input.val(); 
        } else if(data[$input.attr("name")] == undefined){
          data[$input.attr("name")] = null;
        }
      } else {
        data[$input.attr("name")] = $input.val();
      } 
    }
  });
  return data;
};

jQuery.getFormData.func.min.js

$.fn.hasAttr=function(a){var b=$(this).attr(a);return void 0!==typeof b&&b!==!1},$.fn.getFormData=function(){var a={};return $(this).find("input, select, textarea").each(function(b,c){var d=$(c);d.hasAttr("name")&&(d.attr("type")&&d.hasAttr("type")&&"checkbox"==d.attr("type").toLowerCase()?d.is(":checked")?a[d.attr("name")]=!0:a[d.attr("name")]=!1:d.attr("type")&&d.hasAttr("type")&&"radio"==d.attr("type").toLowerCase()?d.is(":checked")?a[d.attr("name")]=d.val():void 0==a[d.attr("name")]&&(a[d.attr("name")]=null):a[d.attr("name")]=d.val())}),a};