How can I hide the por:8080 on the broswer

http://www.mydotcom.com:8080/examples/.....jspHow can I hide the port 8080, cause this is what shows on the URL.thanks
[146 byte] By [mingsenjiang] at [2007-9-26 2:48:24]
# 1
If you configure your server (Tomcat?) to use the default port (80) then the port number can be dropped from the URL.
zaneparks at 2007-6-29 10:33:42 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 2

I have no problem running with tomcat that contain chinese, but when I run the apache which is the same code as the tomcat are running, it cause error 500. I debug it , and found out that it was the chinese that cause the problem. once I took out the chinese, then it works find. Can any one tell me why?

thanks

mingsenjiang at 2007-6-29 10:33:42 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...