Support of underscore for formatting link names

Support of underscore for formatting link names

Hello!

I"m using http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js for the line breaking of the link-names.
It works wonderfull if the link is hyphenated like my-loooooooooooooooooooooooong-link-name, but ignores if it is with undescore.

How can one add a support the line breaking by underscore?

for example: my_loooooooooooo_oooooooooooong_link_name.pdf
will be:
my_loooooooooooo_
oooooooooooong_link_name.pdf


thank you,
best regards,
tanja