line breaking with underscore

line breaking with underscore

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_loooooooooooooooooooooooong_link_name
will be:
my_loooooooooooooooo
oooooooong_link_name


thank you,
best regards,
tanja