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Can I use multiple versions of jQuery on the same page?

Yes, it’s doable due to jQuery’s noconflict mode. http://blog.nemikor.com/2009/10/03/using-multiple-versions-of-jquery/ <!– load jQuery 1.1.3 –> <script type=”text/javascript” src=”http://example.com/jquery-1.1.3.js”></script> <script type=”text/javascript”> var jQuery_1_1_3 = $.noConflict(true); </script> <!– load jQuery 1.3.2 –> <script type=”text/javascript” src=”http://example.com/jquery-1.3.2.js”></script> <script type=”text/javascript”> var jQuery_1_3_2 = $.noConflict(true); </script> Then, instead of $(‘#selector’).function();, you’d do jQuery_1_3_2(‘#selector’).function(); or jQuery_1_1_3(‘#selector’).function();.

SecurityError: Blocked a frame with origin from accessing a cross-origin frame

Same-origin policy You can’t access an <iframe> with different origin using JavaScript, it would be a huge security flaw if you could do it. For the same-origin policy browsers block scripts trying to access a frame with a different origin. Origin is considered different if at least one of the following parts of the address … Read more