This sample JavaScript component opens a "Webtop" from Navigator 4.0 or higher.

Source: webtop.jar

You can also use this digitally signed script with un-signed web pages, as well, by adding the script to your web page, like this:

<SCRIPT LANGUAGE="JavaScript1.2" SRC="webtop.js" ARCHIVE="webtop.jar">

Then call your page with the URL of your webtop attached as a query string, something like this:

http://www.yourdomain.com/yourpage.html?http://www.yourdomain.com/yourwebtop.html

HOW IT WORKS

Contained within the "webtop.jar" file is a JavaScript library file entitled: "webtop.js". The code in this library contains the following function:

function openWebtop() {
    var url = location.search.substring(1,location.search.length);
    netscape.security.PrivilegeManager.enablePrivilege('CanvasAccess'); 
    window.webtopWin = window.open(url || "http://developer.netscape.com", 'webtop', 'alwaysLowered=yes,outerWidth='+ screen.availWidth +',outerHeight='+ screen.availHeight +',left='+ screen.availLeft +',top='+ screen.availTop +',titlebar=no');
}

The openWebtop() function is a part of this digitally signed script, which requests the "CanvasAccess" privilege via the netscape.security.PrivilegeManager to display the Webtop.

To close the webtop, click on it and press Ctrl+W or Alt+F4, depending on your platform hot-keys.

For more information on signed scripts, check out our JavaScript Security in Communicator 4.x page.

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