how to put java to external file .... i like to name it java.js
i use dreamweaver then make a pop up menu but then the java scripts fill in the head part of my index .... can anybody help ...

Firstly Javascript and Java are two different things!

To put the JAVASCRIPT into an external file you simple copy it in but don't include the <script> and </script> at the start and end. Then save it as a .js file.

Then to link to in in the html file place this in the head..

<script type="text/javascript" src="javascript.js"></script>