Handling hung up internet connections

While trying to access certain web sites using Netscape, sometimes these
sites
do not respond and hang up the connection.  Short of going into task
manager and
killing the entire Netscape program, is there any simpler way to end the
effort
to
reach these non-responsive sites?  When these connections hang, nothing
seems to

break oneself out of them, including trying to jump to another site.

                                                   Sherwin D.