Replace the stateBinding function with a more direct method of setting state properties.

 // Generated by CoffeeScript 1.3.3
 (function() {
-  var Rivets, attributeBinding, bidirectionals, getInputValue, rivets, stateBinding,
+  var Rivets, attributeBinding, bidirectionals, getInputValue, rivets,
     __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
@@ -151,59 +151,53 @@
 
   attributeBinding = function(attr) {
     return function(el, value) {
-      switch (attr) {
-        case 'checked':
-          el.setAttribute('checked', value);
-          el.checked = value;
-          return el.defaultChecked = value;
-        default:
-          if (value) {
-            return el.setAttribute(attr, value);
-          } else {
-            return el.removeAttribute(attr);
-          }
+      if (value) {
+        return el.setAttribute(attr, value);
+      } else {
+        return el.removeAttribute(attr);
       }
     };
   };
 
-  stateBinding = function(attr, inverse) {
-    if (inverse == null) {
-      inverse = false;
-    }
-    return function(el, value) {
-      var binding;
-      binding = attributeBinding(attr);
-      return binding(el, inverse === !value ? attr : false);
-    };
-  };
-
   bidirectionals = ['value', 'checked', 'unchecked', 'selected', 'unselected'];
 
   Rivets.routines = {
-    checked: stateBinding('checked'),
-    selected: stateBinding('selected'),
-    disabled: stateBinding('disabled'),
-    unchecked: stateBinding('checked', true),
-    unselected: stateBinding('selected', true),
-    enabled: stateBinding('disabled', true),
-    text: function(el, value) {
-      if (el.innerText != null) {
-        return el.innerText = value || '';
-      } else {
-        return el.textContent = value || '';
-      }
+    enabled: function(el, value) {
+      return el.disabled = !value;
     },
-    html: function(el, value) {
-      return el.innerHTML = value || '';
+    disabled: function(el, value) {
+      return el.disabled = !!value;
     },
-    value: function(el, value) {
-      return el.value = value;
+    checked: function(el, value) {
+      return el.checked = !!value;
+    },
+    unchecked: function(el, value) {
+      return el.checked = !value;
+    },
+    selected: function(el, value) {
+      return el.selected = !!value;
+    },
+    unselected: function(el, value) {
+      return el.selected = !value;
     },
     show: function(el, value) {
       return el.style.display = value ? '' : 'none';
     },
     hide: function(el, value) {
       return el.style.display = value ? 'none' : '';
+    },
+    html: function(el, value) {
+      return el.innerHTML = value || '';
+    },
+    value: function(el, value) {
+      return el.value = value;
+    },
+    text: function(el, value) {
+      if (el.innerText != null) {
+        return el.innerText = value || '';
+      } else {
+        return el.textContent = value || '';
+      }
     }
   };
 

@@ -86,23 +86,7 @@ getInputValue = (el) ->
 # Returns an attribute binding routine for the specified attribute. This is what
 # `registerBinding` falls back to when there is no routine for the binding type.
 attributeBinding = (attr) -> (el, value) ->
-  switch attr
-    when 'checked'
-      el.setAttribute( 'checked', value )
-      el.checked = value
-      el.defaultChecked = value
-    else
-      if value
-        el.setAttribute attr, value
-      else
-        el.removeAttribute attr
-
-# Returns a state binding routine for the specified attribute. Can optionally be
-# negatively evaluated. This is used to build a lot of the core state binding
-# routines.
-stateBinding = (attr, inverse = false) -> (el, value) ->
-  binding = attributeBinding(attr)
-  binding el, if inverse is !value then attr else false
+  if value then el.setAttribute attr, value else el.removeAttribute attr
 
 # Bindings that should also be observed for changes on the DOM element in order
 # to propagate those changes back to the model object.
@@ -110,31 +94,31 @@ bidirectionals = ['value', 'checked', 'unchecked', 'selected', 'unselected']
 
 # Core binding routines.
 Rivets.routines =
-  checked:
-    stateBinding 'checked'
-  selected:
-    stateBinding 'selected'
-  disabled:
-    stateBinding 'disabled'
-  unchecked:
-    stateBinding 'checked', true
-  unselected:
-    stateBinding 'selected', true
-  enabled:
-    stateBinding 'disabled', true
+  enabled: (el, value) ->
+    el.disabled = !value
+  disabled: (el, value) ->
+    el.disabled = !!value
+  checked: (el, value) ->
+    el.checked = !!value
+  unchecked: (el, value) ->
+    el.checked = !value
+  selected: (el, value) ->
+    el.selected = !!value
+  unselected: (el, value) ->
+    el.selected = !value
+  show: (el, value) ->
+    el.style.display = if value then '' else 'none'
+  hide: (el, value) ->
+    el.style.display = if value then 'none' else ''
+  html:  (el, value) ->
+    el.innerHTML = value or ''
+  value: (el, value) ->
+    el.value = value
   text: (el, value) ->
     if el.innerText?
       el.innerText = value or ''
     else
       el.textContent = value or ''
-  html: (el, value) ->
-    el.innerHTML = value or ''
-  value: (el, value) ->
-    el.value = value
-  show: (el, value) ->
-    el.style.display = if value then '' else 'none'
-  hide: (el, value) ->
-    el.style.display = if value then 'none' else ''
 
 # Default configuration.
 Rivets.config =