As a side node: I did a diff and it seems that besides some newlines at the top and the text at the end the scripts jquery-1.6.2.js and and jquery-1.6.2.min.js

As a side node: I did a diff and it seems that besides some newlines at the top and the text at the end the scripts jquery-1.6.2.js and and jquery-1.6.2.min.js are in fact identical. This could have changed at any time, so from a security standpoint, you could even consider the client page as being compromised.