HELP! * GREY=local LOCAL HTML version of Foils prepared 26 February 1996

Foil 38 Use of Dummy Frames in JavaScript

From CPS616 Lectures on JavaScript CPS616 Basic Information Track for Computational Science -- Winter-Spring Semester 96. by Geoffrey C. Fox * See also color IMAGE
<HEAD> Bunch of JavaScript</HEAD>
<BODY>
Sundry actions that load a new URL into page
</BODY>
will result in loss of all JavaScript methods and properties as you load new page! This can be avoided by using dummy frames as below
<HEAD> Bunch of JavaScript</HEAD>
<FRAMESET ROWS="1,*" >
<FRAME NAME="DUMMY" >
<FRAME NAME="ActualFrame" SRC="Thiscontainsoldbodyhtml.html" >
</FRAMESET>
Now use target="ActualFrame" in <a href="URL"> and reloading ActualFrame will NOT destroy your JavaScript!
Note we defined a dummy frame which occupied one pixel (could use zero!) above ActualFrame
The * notation tells Netscape to assign the remaining rows to second frame

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Page produced by wwwfoil on Tue Feb 18 1997