Steps to reproduce:
1.On mercury10,jre1.4.2_02-b03,mozilla1.4(2003/09/28).
2.Launch http://baseman.prc/Basicfunction/liveconnect/test2/jsJAVA.html
3.Type some characters into script text field,then press the under button,then move cursor out to applet and reback into text field, the text field get the focus and turn to black border and cursor is twinkling,but can't input characters.
Sometimes, through click or double click, make it can input again, sometimes,can't. Sometimes, if select some characters, can't use DEL keyboard to delete the characters.

It is difficultly to find to reproduce this bug's changeless way, but through again and again play, sometimes, that make lose focus and can't input anymore include can't input characters into browser's url bar or proxy setting fields .

While doing test,this bug sometimes happen with other test cases,such as: http://baseman.prc/jdk-applet-demo/1.4.2/demos/applets/DitherTest/example1.html
http://baseman.prc/jdk-applet-demo/1.4.2/demos/applets/ArcTest/example1.html
###@###.### 10/20/04 04:00 GMT