diff --git a/backbone.modelbinding.js b/backbone.modelbinding.js
index 714e941..8106e19 100644
--- a/backbone.modelbinding.js
+++ b/backbone.modelbinding.js
@@ -47,40 +47,40 @@ Backbone.ModelBinding = (function(){
   return {
     version: "0.1.2",
 
-	getBindingAttribute: function(type){return config[type];},
-	
-	configureCall: function(options){
-	  if (options != null) {
-		for (var type in config){
-		  if (!options[type + 'Attribute']) {
-			options[type + 'Attribute'] = config[type];
-		  }
-		}
-	    this.options = options;
-		this.is_configured = true;
-	  }
-	},
-	
-	configure: function(options){
-	  if (options != null) {
-		for (var type in config) {
-		  config[type] = options[type + 'Attribute'] ? 
-			options[type + 'Attribute'] : config[type];
-		}
-	  }
-	},
-	
-	resetCallConfiguration: function(){
-	  this.options = null;
-	  this.is_configured = false;
-	},
-	
+    getBindingAttribute: function(type){ return config[type]; },
+    
+    configureCall: function(options){
+      if (options != null) {
+        for (var type in config){
+          if (!options[type + 'Attribute']) {
+          options[type + 'Attribute'] = config[type];
+          }
+        }
+        this.options = options;
+        this.is_configured = true;
+      }
+    },
+    
+    configure: function(options){
+      if (options != null) {
+        for (var type in config) {
+          config[type] = options[type + 'Attribute'] ? 
+          options[type + 'Attribute'] : config[type];
+        }
+      }
+    },
+    
+    resetCallConfiguration: function(){
+      this.options = null;
+      this.is_configured = false;
+    },
+    
     call: function(view, options){
-	  this.configureCall(options);
-	  handleFormBindings(view, view.model);
+      this.configureCall(options);
+      handleFormBindings(view, view.model);
       handleHtmlBindings(view, view.model);
       handleConventionBindings(view, view.model);
-	  this.resetCallConfiguration();
+      this.resetCallConfiguration();
     }
   }
 })();
@@ -93,7 +93,7 @@ Backbone.ModelBinding.Conventions = (function(){
     bind: function(selector, view, model){
       view.$(selector).each(function(index){
         var element = view.$(this);
-		var field = getBindingValue(element, 'standard');
+        var field = getBindingValue(element, 'standard');
         Backbone.ModelBinding.HelperMethods.bidirectionalBinding.call(view, field, element, model);
       });
     }
@@ -115,10 +115,10 @@ Backbone.ModelBinding.Conventions = (function(){
       var foundElements = [];
       view.$(selector).each(function(index){
         var element = view.$(this);
-		var group_name = getBindingValue(element, 'radio');
+        var group_name = getBindingValue(element, 'radio');
         if (!foundElements[group_name]) {
           foundElements[group_name] = true;
-		  var bindingAttr = getBindingAttr('radio');
+          var bindingAttr = getBindingAttr('radio');
           Backbone.ModelBinding.HelperMethods.bidirectionalRadioGroupBinding.call(view, group_name, model, bindingAttr);
         }
       });
@@ -130,20 +130,20 @@ Backbone.ModelBinding.Conventions = (function(){
       var self = this;
       view.$(selector).each(function(index){
         var element = view.$(this);
-		var field = getBindingValue(element, 'checkbox');
+        var field = getBindingValue(element, 'checkbox');
         Backbone.ModelBinding.HelperMethods.bidirectionalCheckboxBinding.call(view, field, element, model);
       });
     }
   };
   
   function getBindingAttr(type){
-	return Backbone.ModelBinding.is_configured ? 
+    return Backbone.ModelBinding.is_configured ? 
 		Backbone.ModelBinding.options[type + 'Attribute'] : Backbone.ModelBinding.getBindingAttribute(type);
   }
   
   function getBindingValue(element, type){
-	var bindingAttr = getBindingAttr(type);
-	return element.attr(bindingAttr);
+    var bindingAttr = getBindingAttr(type);
+    return element.attr(bindingAttr);
   }
 
   return {
@@ -162,116 +162,116 @@ Backbone.ModelBinding.Conventions = (function(){
 // and non-conventional bindings
 // ----------------------------
 Backbone.ModelBinding.HelperMethods = (function(){
+  methods = {};
 
-  return {
-    bidirectionalBinding: function(attribute_name, element, model){
-      var self = this;
+  methods.bidirectionalBinding = function(attribute_name, element, model){
+    var self = this;
 
-      // bind the model changes to the form elements
-      model.bind("change:" + attribute_name, function(changed_model, val){
-        element.val(val);
-      });
+    // bind the model changes to the form elements
+    model.bind("change:" + attribute_name, function(changed_model, val){
+      element.val(val);
+    });
 
-      // bind the form changes to the model
-      element.bind("change", function(ev){
-        data = {};
-        data[attribute_name] = self.$(ev.target).val();
-        model.set(data);
-      });
+    // bind the form changes to the model
+    element.bind("change", function(ev){
+      data = {};
+      data[attribute_name] = self.$(ev.target).val();
+      model.set(data);
+    });
 
-      // set the default value on the form, from the model
-      var attr_value = model.get(attribute_name);
-      if (attr_value) {
-        element.val(attr_value);
-      }
-    },
+    // set the default value on the form, from the model
+    var attr_value = model.get(attribute_name);
+    if (attr_value) {
+      element.val(attr_value);
+    }
+  },
 
-    bidirectionalSelectBinding: function(attribute_name, element, model){
-      var self = this;
+  methods.bidirectionalSelectBinding = function(attribute_name, element, model){
+    var self = this;
 
-      // bind the model changes to the form elements
-      model.bind("change:" + attribute_name, function(changed_model, val){
-        element.val(val);
-      });
+    // bind the model changes to the form elements
+    model.bind("change:" + attribute_name, function(changed_model, val){
+      element.val(val);
+    });
 
-      // bind the form changes to the model
-      element.bind("change", function(ev){
-        data = {};
-        data[attribute_name] = self.$(ev.target).val();
-        data[attribute_name + "_text"] = self.$(":selected", ev.target).text();
-        model.set(data);
-      });
+    // bind the form changes to the model
+    element.bind("change", function(ev){
+      data = {};
+      data[attribute_name] = self.$(ev.target).val();
+      data[attribute_name + "_text"] = self.$(":selected", ev.target).text();
+      model.set(data);
+    });
 
-      // set the default value on the form, from the model
-      var attr_value = model.get(attribute_name);
-      if (attr_value) {
-        element.val(attr_value);
-      }
-    },
-	
-	bidirectionalRadioGroupBinding: function(group_name, model, bindingAttr){
-      var self = this;
+    // set the default value on the form, from the model
+    var attr_value = model.get(attribute_name);
+    if (attr_value) {
+      element.val(attr_value);
+    }
+  },
 
-      // bind the model changes to the form elements
-      model.bind("change:" + group_name, function(changed_model, val){
-        var value_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "][value=" + val + "]";
-		self.$(value_selector).attr("checked", "checked");
-      });
+  methods.bidirectionalRadioGroupBinding = function(group_name, model, bindingAttr){
+    var self = this;
 
-      // bind the form changes to the model
-      var group_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "]";
-      self.$(group_selector).bind("change", function(ev){
-        var element = self.$(ev.currentTarget);
-        if (element.attr("checked")){
-          data = {};
-          data[group_name] = element.val();
-          model.set(data);
-        }
-      });
+    // bind the model changes to the form elements
+    model.bind("change:" + group_name, function(changed_model, val){
+      var value_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "][value=" + val + "]";
+      self.$(value_selector).attr("checked", "checked");
+    });
 
-      // set the default value on the form, from the model
-      var attr_value = model.get(group_name);
-      if (attr_value) {
-        var value_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "][value=" + attr_value + "]";
-        self.$(value_selector).attr("checked", "checked");
+    // bind the form changes to the model
+    var group_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "]";
+    self.$(group_selector).bind("change", function(ev){
+      var element = self.$(ev.currentTarget);
+      if (element.attr("checked")){
+        data = {};
+        data[group_name] = element.val();
+        model.set(data);
       }
-    },
+    });
 
-    bidirectionalCheckboxBinding: function(attribute_name, element, model){
-      var self = this;
+    // set the default value on the form, from the model
+    var attr_value = model.get(group_name);
+    if (attr_value) {
+      var value_selector = "input[type=radio][" + bindingAttr + "=" + group_name + "][value=" + attr_value + "]";
+      self.$(value_selector).attr("checked", "checked");
+    }
+  },
 
-      // bind the model changes to the form elements
-      model.bind("change:" + attribute_name, function(changed_model, val){
-        if (val){
-          element.attr("checked", "checked");
-        }
-        else{
-          element.removeAttr("checked");
-        }
-      });
+  methods.bidirectionalCheckboxBinding = function(attribute_name, element, model){
+    var self = this;
 
-      // bind the form changes to the model
-      element.bind("change", function(ev){
-        data = {};
-        var changedElement = self.$(ev.target);
-        var checked = changedElement.attr("checked")? true : false;
-        data[attribute_name] = checked;
-        model.set(data);
-      });
+    // bind the model changes to the form elements
+    model.bind("change:" + attribute_name, function(changed_model, val){
+      if (val){
+        element.attr("checked", "checked");
+      }
+      else{
+        element.removeAttr("checked");
+      }
+    });
 
-      // set the default value on the form, from the model
-      var attr_exists = model.attributes.hasOwnProperty(attribute_name);
-      if (attr_exists) {
-        var attr_value = model.get(attribute_name);
-        if (attr_value){
-          element.attr("checked", "checked");
-        }
-        else{
-          element.removeAttr("checked");
-        }
+    // bind the form changes to the model
+    element.bind("change", function(ev){
+      data = {};
+      var changedElement = self.$(ev.target);
+      var checked = changedElement.attr("checked")? true : false;
+      data[attribute_name] = checked;
+      model.set(data);
+    });
+
+    // set the default value on the form, from the model
+    var attr_exists = model.attributes.hasOwnProperty(attribute_name);
+    if (attr_exists) {
+      var attr_value = model.get(attribute_name);
+      if (attr_value){
+        element.attr("checked", "checked");
       }
-    },
+      else{
+        element.removeAttr("checked");
+      }
+    }
 
   }
 
+  return methods;
 })();
diff --git a/spec/javascripts/configurableBindingAttributes.spec.js b/spec/javascripts/configurableBindingAttributes.spec.js
index 591b588..56742cb 100644
--- a/spec/javascripts/configurableBindingAttributes.spec.js
+++ b/spec/javascripts/configurableBindingAttributes.spec.js
@@ -1,13 +1,15 @@
 describe("configurableBindingAttributes", function(){
   beforeEach(function(){
-	this.model = new AModel({
-		super_power: "mega pooping",
-		education: "graduate",
-		graduated: "maybe",
-		drivers_license: true
-	});
-	this.view = new AnotherView({model: this.model});
-	this.view.render();
+
+    this.model = new AModel({
+      super_power: "mega pooping",
+      education: "graduate",
+      graduated: "maybe",
+      drivers_license: true
+    });
+
+    this.view = new AnotherView({model: this.model});
+    this.view.render();
   });
   
   describe("text element binding using configurable attribute", function(){
@@ -113,4 +115,4 @@ describe("configurableBindingAttributes", function(){
       expect(selected).toBeTruthy();
     });
   });
-});
\ No newline at end of file
+});
diff --git a/spec/javascripts/helpers/sample.backbone.app.js b/spec/javascripts/helpers/sample.backbone.app.js
index f50d46d..d797c44 100644
--- a/spec/javascripts/helpers/sample.backbone.app.js
+++ b/spec/javascripts/helpers/sample.backbone.app.js
@@ -57,12 +57,15 @@ AnotherView = Backbone.View.extend({
       <input type='radio' id='graduated_maybe' class='graduated' value='maybe'>\
       <input type='checkbox' class='drivers_license' value='yes'>\
     ");
+
     this.$(this.el).append(html);
-	Backbone.ModelBinding.call(this, {
-		standardAttribute: 'class',
-		radioAttribute: 'class',
-		selectAttribute: 'class',
-		checkboxAttribute: 'class',
-	});
+
+    Backbone.ModelBinding.call(this, {
+      standardAttribute: 'class',
+      radioAttribute: 'class',
+      selectAttribute: 'class',
+      checkboxAttribute: 'class',
+    });
+
   },
 });