diff --git a/javascript/prototypefix/README b/javascript/prototypefix/README
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+Prototype replaces document.getElementsByClassName with it's own version. However many browsers
+now come with their own implementation, and prototype's is much slower.
+
+This fixes this by restoring the original after prototype is loaded.
+
+@todo: Safari 3 used to come with a broken document.getElementsByClassName. We should use
+the same checks jQuery does and not restore the function if it doesn't work the same as the spec. 
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diff --git a/javascript/prototypefix/intro.js b/javascript/prototypefix/intro.js
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+var browserGetElementsByClassName = document.getElementsByClassName;
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diff --git a/javascript/prototypefix/outro.js b/javascript/prototypefix/outro.js
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+if (browserGetElementsByClassName) document.getElementsByClassName = browserGetElementsByClassName;