Is it possible we can catch script tag error ?

I have 1 js file but different links (2 different servers)

If link 1 has error then we load it on link 2

Code:

link 1 : <script type="text/javascript" " src="http://server1/test.js"></script>
link 2 : <script type="text/javascript" " src="http://server2/test.js"></script>

Try it ajax form to load and cache

SSYT wrote:Try it ajax form to load and cache

Does not work, the error comes before the code ... it relates to something likes Window OnError ... I need to research more