diff --git a/jquery.onscreen.js b/jquery.onscreen.js
index bbd1f3d..6f34564 100644
--- a/jquery.onscreen.js
+++ b/jquery.onscreen.js
@@ -1,22 +1,40 @@
-// onScreen jQuery plugin v0.2.1
+// onScreen jQuery plugin v0.2.2
 // (c) 2011 Ben Pickles
 //
 // http://benpickles.github.com/onScreen
 //
 // Released under MIT license.
-;(function($) {
-  $.expr[":"].onScreen = function(elem) {
-    var $window = $(window)
-    var viewport_top = $window.scrollTop()
-    var viewport_height = $window.height()
-    var viewport_bottom = viewport_top + viewport_height
-    var $elem = $(elem)
-    var top = $elem.offset().top
-    var height = $elem.height()
-    var bottom = top + height
+(function($) {
+    $.expr[":"].onScreen = function(elem) {
+        var $window = $(window);
+        var viewport_top = $window.scrollTop();
+        var viewport_left = $window.scrollLeft();
+        var viewport_width = $window.width();
+        var viewport_height = $window.height();
+        var viewport_right = viewport_left + viewport_width;
+        var viewport_bottom = viewport_top + viewport_height;
+        var $elem = $(elem);
+        var top = $elem.offset().top;
+        var left = $elem.offset().left;
+        var width = $elem.width();
+        var height = $elem.height();
+        var right = left + width;
+        var bottom = top + height;
 
-    return (top >= viewport_top && top < viewport_bottom) ||
-           (bottom > viewport_top && bottom <= viewport_bottom) ||
-           (height > viewport_height && top <= viewport_top && bottom >= viewport_bottom)
-  }
-})(jQuery);
+        var onScreen = (
+                (
+                (left >= viewport_left && left < viewport_right) ||
+                (right > viewport_left && right <= viewport_right) ||
+                (width > viewport_width && left <= viewport_left && right >= viewport_right)
+                )
+            &&
+                (
+                (top >= viewport_top && top < viewport_bottom) ||
+                (bottom > viewport_top && bottom <= viewport_bottom) ||
+                (height > viewport_height && top <= viewport_top && bottom >= viewport_bottom)
+                )
+        );
+
+        return onScreen;
+    };
+})(jQuery);
\ No newline at end of file
diff --git a/jquery.onscreen.min.js b/jquery.onscreen.min.js
index 2cc06e5..a91bf70 100644
--- a/jquery.onscreen.min.js
+++ b/jquery.onscreen.min.js
@@ -1,7 +1,7 @@
-// onScreen jQuery plugin v0.2.1
+// onScreen jQuery plugin v0.2.2
 // (c) 2011 Ben Pickles
 //
 // http://benpickles.github.com/onScreen
 //
 // Released under MIT license.
-(function(a){a.expr[":"].onScreen=function(b){var c=a(window),d=c.scrollTop(),e=c.height(),f=d+e,g=a(b),h=g.offset().top,i=g.height(),j=h+i;return h>=d&&h<f||j>d&&j<=f||i>e&&h<=d&&j>=f}})(jQuery);
\ No newline at end of file
+(function(e){e.expr[":"].onScreen=function(t){var n=e(window);var r=n.scrollTop();var i=n.scrollLeft();var s=n.width();var o=n.height();var u=i+s;var a=r+o;var f=e(t);var l=f.offset().top;var c=f.offset().left;var h=f.width();var p=f.height();var d=c+h;var v=l+p;var m=(c>=i&&c<u||d>i&&d<=u||h>s&&c<=i&&d>=u)&&(l>=r&&l<a||v>r&&v<=a||p>o&&l<=r&&v>=a);return m}})(jQuery)
\ No newline at end of file