October 1999
Intermediate to advanced
480 pages
14h 47m
English
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The Syntax Breakdown
This application involves two files: index.html
and multi.html.
index.html, shown in Example 4.1, utilizes nested framesets to achieve the
surrounding border effect.
Example 4-1. index.html
1 <HTML>
2 <HEAD>
3 <TITLE>Multi-Search Engine Interface Site</TITLE>
4 <SCRIPT LANGUAGE="JavaScript1.2">
5 <!--
6 var black = '<BODY BGCOLOR=BLACK></BODY>';
7 var white = '<BODY BGCOLOR=WHITE></BODY>';
8 //-->
9 </SCRIPT>
10 </HEAD>
11 <FRAMESET ROWS="15,*,50" FRAMEBORDER=0 BORDER=0>
12 <FRAME SRC="javascript: parent.black;" SCROLLING=NO>
13 <FRAMESET COLS="15,*,15" FRAMEBORDER=0 BORDER=0>
14 <FRAME SRC="javascript: parent.black;"SCROLLING=NO>
15 <FRAME SRC="javascript: parent.white;">
16 <FRAME SRC="javascript: parent.black;"
17 SCROLLING=NO>
18 </FRAMESET>
19 <FRAME SRC="multi.html" SCROLLING=NO>
20 </FRAMESET>
21 </HTML>
The two JavaScript variables black and
white at lines 6 and 7 are evaluated as HTML
strings in the SRC attribute of the frames in lines
12 and 14-16. We reviewed this in the sidebar JavaScript Technique: Cheating the SRC Attribute in Chapter 2. If you’ve
been following along in order, this shouldn’t be rocket science. The
only frames that see any real action are frames[2],
which displays the search results, and frames[4],
which houses the search engine interface. The rest are purely for
show. Let’s move on to multi.html, shown in
Example 4.2.
Example 4-2. multi.html
1 <HTML> 2 <HEAD> 3 <TITLE>Multi-Engine Menu</TITLE> 4 <SCRIPT LANGUAGE="JavaScript1.2"> ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.