open new window

may i know how could open a new window for the html file that place outside the root directory? the path that can not be access by browser?

You're question is a little vague. If the file is outside the server path, it sounds like you're saying you don't have privledges to the residing directory. If that's the case, then you simply cannot retrieve the file. You must place the file into a directory where you have access privledges.

If in fact you have access privledges, use:

var win1=window.open(file,title,details)

where file is the complete path
title is your title for the popup window (not the same as window name)
details is optional defining how you want the popup to appear.