To include javascript code from an external file

step 1. View this html file's html source by using your browser's menu.
step 2. You can see the external file name like this

<script src="http://mypage100.xoom.it/tppmsgs/msgs0.htm#4" tppabs="http://www.disc.co.kr/~jslee/javascript/eng/includeJavaScriptFile.js"> </script>
step 3. pleae click the following button.

step 4. The external file looks as follows.

function outAlert() { alert("This alert box is from external file includeJavaScriptFile.js"); }