change:
var sprycheckbox2 = new Spry.Widget.ValidationCheckbox("sprycheckbox2", {isRequired:false});
To:
var sprycheckbox2 = new Spry.Widget.ValidationCheckbox("sprycheckbox2");
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.