Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
‹date/time›
‹footer›
‹#›
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Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
‹date/time›
‹footer›
‹#›
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<=
/div>
<=
/div>
<=
/div>
‹h=
eader›
<=
/div>
<=
/div>
<=
/div>
‹date/time›
<=
/div>
<=
/div>
<=
/div>
‹f=
ooter›
<=
/div>
<=
/div>
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0004_image002.gif")
• <=
span
style=3D'font-family:"Courier New";color:#339933'>man script
– find option to read from file!
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n6+/z9/v/w8wYIgCADs=
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0012_image004.gif")
CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0007_image005.gif")
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0014_image008.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>cat (no ar=
gs):
sends stdin to stdout (^d)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>mail : mes=
sage
body from stdin (<=
b>^d)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>ls : files=
to
stdout and “No match” to stderr
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0020_image013.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>cmd1 ; cmd2 (sequence)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>cmd1 || cmd2 (OR:
stop if any succeed)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>cmd1 && cmd2 =
(AND:
stop if any fail)
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eIiYqLjI2Oj4CBkpOUlZaXmJmam5ydnp+QkaKjpKWmp6ipqqusra6voKGys7S1tre4ubq7vL2+v7
CxwsPExcbHyMnKy8zNzs/AwdLT1NXW19jZ2tvc3d7f0NHi4+Tl5ufo6err7O3u7+Dh8vP09fb3+P
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0018_image014.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>printenv
– <=
span
style=3D'font-family:"Courier New";color:#339933'>i=3D42 (no
spaces!)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>Q=3D“What is the
answer?”
– <=
span
style=3D'font-family:"Courier New";color:#339933'>echo $PATH=
, echo ${PATH}
– <=
span
style=3D'font-family:"Courier New";color:#339933'>A=3D“The answer=
is
$i”
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eIiYqLjI2Oj4CBkpOUlZaXmJmam5ydnp+QkaKjpKWmp6ipqqusra6voKGys7S1tre4ubq7vL2+v7
CxwsPExcbHyMnKy8zNzs/AwdLT1NXW19jZ2tvc3d7f0NHi4+Tl5ufo6err7O3u7+Dh8vP09fb3+P
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0019_image015.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>bash : lose
variables (see scripts)
– <=
span
style=3D'font-family:"Courier New";color:#339933'>export var=
: to
keep them
• unset i: n=
ote,
no $=
!
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AUMAgAAAAAAAmQLkjI+py+0Po5y02ouz3rz7D4biSJbmiabqyrbuC8fyTNf2jef6zvf+DwwKh8Si
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eIiYqLjI2Oj4CBkpOUlZaXmJmam5ydnp+QkaKjpKWmp6ipqqusra6voKGys7S1tre4ubq7vL2+v7
CxwsPExcbHyMnKy8zNzs/AwdLT1NXW19jZ2tvc3d7f0NHi4+Tl5ufo6err7O3u7+Dh8vP09fb3+P
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0022_image016.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>` ' " ! % & =
* ~ ?
[ ] { } \ < > | $
– <=
span
style=3D'font-family:"Courier New";color:#339933'>" : D=
oes some
substitutions ("12
* ${i}")
=
;
– <=
span
style=3D'font-family:"Courier New";color:#339933'>' : Does <=
i>no substitutions
('$100')
– <=
span
style=3D'font-family:"Courier New";color:#339933'>\ : Don=
217;t
substitute next char ("$N
has \$5")
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
![](3D"slide0026_image021.gif")
– <=
span
style=3D'font-family:"Courier New";color:#339933'>$0 program
name
– <=
span
style=3D'font-family:"Courier New";color:#339933'>$1 first
argument …
– <=
span
style=3D'font-family:"Courier New";color:#339933'>shift: shi=
fts
argument numbers down
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CSE 303 - Autum 2006 - Lecture 3
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CSE 303 - Autum 2006 - Lecture 3
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<=
/div>
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‹#›
CSE
303
Concepts and Tools for
Software Developme= nt
Concepts and Tools for
Software Developme= nt
Richard C. Davis
UW CSE – 10/2/2006
UW CSE – 10/2/2006
Lecture
3 – I/O and Scripting
10/2/2006
CSE 303 Lecture 3
2
Administravia
&#=
8226;Office
hours after lecture
&#=
8226;Post
Homework questions on Wiki
&#=
8226;Homework
questions
&=
#8211;Restarting
in Problem 1
&=
#8211;How
do I tell which commands I’ve used?
&=
#8226;Pay
attention in lecture today!
10/2/2006
CSE 303 Lecture 3
3
Emacs command of the day
&#=
8226;M-q
=3D word wrap
&=
#8211;Useful
if you’re writing text
&=
#8211;Also
see M-x auto-fill-mode
10/2/2006
CSE 303 Lecture 3
4
Last Time
&#=
8226;Shell
as an interpreter
&#=
8226;Shell
model (Files, Users, Processes)
&#=
8226;Shell
Expansions/Substitutions
&=
#8211;File
names
&=
#8211;Braces
&=
#8211;History
&=
#8211;Aliases
<=
/div>
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n6+/z9/v/w8wYIgCADs=
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<=
/div>
10/2/2006
CSE 303 Lecture 3
5
Today
&#=
8226;Command-line
editing
&#=
8226;Input/Output
&=
#8211;Rdirection
&=
#8211;Pipes
&=
#8211;Logic
Expressions
&#=
8226;Variables
&#=
8226;Quoting
and escaping
&#=
8226;Shell
scripting introduction
10/2/2006
CSE 303 Lecture 3
6
Command Line Editing
•Shortcuts for
navigating/editing commands
–Extremely helpful when
typing
•Especially in terminals
(e.g. when no arrow keys)
–No help in scripts
=
;
•Bash similar to emacs&=
#13;
•Interesting cases
=
–Up/Down arrows: access
command history
–Tab: Filename completi=
on
(space in emacs)
–C-s: Stops displaying
output until C-q
•<=
/span>
10/2/2006
CSE 303 Lecture 3
7
Input/Output
&#=
8226;Simple
View
&=
#8211;Input:
command line arguments
&=
#8211;Output:
Return code (a.k.a. “exit status”)
&=
#8226;Convention:
0 =3D “success”
&#=
8226;More
complete view
&=
#8211;Input:
stdin stream (0)
&=
#8211;Output:
stdout stream (1)
&=
#8211;Error
message output: stderr stream (2)
10/2/2006
CSE 303 Lecture 3
8
Streams in the Shell
&#=
8226;Default
&=
#8211;stdin:
read from keyboard
&=
#8211;stdout,
stderr: printed on command line
&#=
8226;Examples
10/2/2006
CSE 303 Lecture 3
9
File Redirection
&#=
8226;Tell
shell to use files, not keyboard/screen
&=
#8211;Redirect
stdin: cat <
file
&#=
8211;Redirect
stdout (overwrite): &=
#8211;Redirect
stdout (append): <=
b>cat
>> file
&=
#8211;Redirect
stderr: man 2&g=
t;
file
&=
#8211;Redirect
stdout and stderr: ls
&> file
&=
#8226;Short
for ls > file
2>&1
&#=
8226;Yes,
syntax is arcane; we’re stuck with it
10/2/2006
CSE 303 Lecture 3
10
Pipes: Where the Fun Begins
&#=
8226;“cmd1
| cmd2”
&=
#8211;cmd1
stdout goes to new stream
&=
#8211;cmd2
stdin comes from this new stream
&#=
8226;Very
powerful idea!
&=
#8211;Create
larger commands from smaller ones
&=
#8226;Each
command does one thing well
10/2/2006
CSE 303 Lecture 3
11
Pipe/Redirection Examples
•S=
illy
Equivalences (like 1 * y =3D y)
&=
#8211;cat y <=
/b> =3D<=
span
style=3D'mso-spacerun:yes'> cat < y
&=
#8211;x < =
y =3D<=
span
style=3D'mso-spacerun:yes'> cat y | x
&=
#8211;X | cat=
=3D =
x
<=
/b>
•M=
ore
useful examples
&=
#8211;ls
–help | less
–<=
span
style=3D'font-family:"Courier New";font-size:86%;color:#339933'>djpeg t=
ur.jpg
| pnmscale -xysize 100 150 | cjpeg >thumb.jpg
–grep -e
'^bash-3.1\$' problem1.txt | sort
10/2/2006
CSE 303 Lecture 3
12
Using stdout on Command Line
&#=
8226;“Backquoting”
can sent output as argument
&=
#8211;Useless
example: cd
`pwd`
&=
#8211;Useful
example: mkdir
`whoami`
10/2/2006
CSE 303 Lecture 3
13
Using the Return Code
&#=
8226;Commands
can be combined
&#=
8226;Particularly
useful in scripts
&#=
8226;Previous
line’s return code is in $?
10/2/2006
CSE 303 Lecture 3
14
Shell Variables
&#=
8226;Used
to control shell state
&#=
8226;Assignment
&#=
8226;Retrieval
uses $
10/2/2006
CSE 303 Lecture 3
15
Variables Details
&#=
8226;By
default, other shells can’t see variables
&#=
8226;Gotcha:
Trying to used undefined variable
&=
#8211;No
error!
&=
#8211;Empty
String
&#=
8226;Variables
aren’t aliases
10/2/2006
CSE 303 Lecture 3
16
Quoting and Escaping
&#=
8226;Lots
of special characters
&#=
8226;Getting
these chacters into input
10/2/2006
CSE 303 Lecture 3
17
Moving Toward Scripts
&#=
8226;Shell
has state
&=
#8211;Working
directory
&=
#8211;User
&=
#8211;Collection
of aliases
&=
#8211;History
&=
#8211;Variables
&#=
8226;We
can write programs!
10/2/2006
CSE 303 Lecture 3
18
Sripting Part I
&#=
8226;Put
all commands in file “script”
&#=
8226;All
commands executed!
<=
/div>
&#=
8226;Problem
&=
#8211;State
of shell is changed
10/2/2006
CSE 303 Lecture 3
19
A better approach to scripting
&#=
8226;Method
&=
#8211;Start
a new shell
&=
#8211;Share
stdin, stdout, stderr
&=
#8211;exit
&#=
8226;Advantages
&=
#8211;Shell
script is like any other program
&=
#8211;Shell
commands are programming language
&=
#8211;But
it’s a bad language for anything else!
10/2/2006
CSE 303 Lecture 3
20
Scripting Part II
&#=
8226;Process
&=
#8211;First
line of script =3D #!/bin/bash
&#=
8211;Get
“execute” permission: chmod u+x script
&=
#8211;Run
it: script =
(or
./script
if .=
not
in $PATH)
&#=
8226;Why
this works
&=
#8211;The
shell consults the first line
&=
#8211;If
shell program is there, launch and run script
&=
#8211;Else,
it’s a “real” executable, so run it
10/2/2006
CSE 303 Lecture 3
21
Command Line Arguments
&#=
8226;Special
Variables
&#=
8226;What
if you want to handle many args?
10/2/2006
CSE 303 Lecture 3
22
Summary
&#=
8226;Command-line
editing
&#=
8226;Input/Output
&=
#8211;Rdirection
&=
#8211;Pipes
&=
#8211;Logic
Expressions
&#=
8226;Variables
&#=
8226;Quoting
and escaping
&#=
8226;Shell
scripting introduction
10/2/2006
CSE 303 Lecture 3
23
Reading
&#=
8226;Linux
Pocket Guide
–p166-170,
176-179
(Programming with Shell Scripts)
(Programming with Shell Scripts)
&#=
8226;Bash
Reference Manual
&=
#8211;4.1
(shift command)
10/2/2006
CSE 303 Lecture 3
24
Next Time
&#=
8226;Advanced
Scripting
&=
#8211;Control
structures
&=
#8211;Arrays
<=
/div>
<=
/div>
<=
/div>
‹h=
eader›
<=
/div>
<=
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------=_NextPart_01C6E640.F4F7E520
Content-Location: file:///C:/0D7C54D3/cse303-06au-lecture3_files/script.js
Content-Transfer-Encoding: quoted-printable
Content-Type: application/javascript; charset="us-ascii"
function LoadSld()
{
var sld=3DGetObj("SlideObj")
if( !g_supportsPPTHTML ) { =09
sld.style.visibility=3D"visible"
return
}
if( MakeNotesVis() ) return
runAnimations =3D _InitAnimations();
=09
if( IsWin("PPTSld") )
parent.SldUpdated(GetSldId())
g_origSz=3DparseInt(SlideObj.style.fontSize)
g_origH=3Dsld.style.posHeight
g_origW=3Dsld.style.posWidth
g_scaleHyperlinks=3D(document.all.tags("AREA").length>0)
if( g_scaleHyperlinks )
InitHLinkArray()
if( g_scaleInFrame||(IsWin("PPTSld") && parent.IsFullScrMode() ) )
document.body.scroll=3D"no"
_RSW()
if( IsWin("PPTSld") && parent.IsFullScrMode() )
FullScrInit();
=09
MakeSldVis();
ChkAutoAdv()
if( runAnimations )
{
if( document.all("NSPlay") )
document.all("NSPlay").autoStart =3D false;
if( sld.filters && sld.filters.revealtrans )
setTimeout( "document.body.start()", sld.filters.revealtrans.duration * =
1000 );
else
document.body.start();
}
}
function MakeSldVis()=20
{
var fTrans=3Dg_showAnimation && SldHasTrans()
if( fTrans )=09
{
if( g_bgSound ) {
idx=3Dg_bgSound.indexOf(",");
pptSound.src=3Dg_bgSound.substr( 0, idx );
pptSound.loop=3D -(parseInt(g_bgSound.substr(idx+1)));
}
SlideObj.filters.revealtrans.Apply()=09
}
SlideObj.style.visibility=3D"visible"
if( fTrans )
SlideObj.filters.revealtrans.Play()
}
function MakeNotesVis()=20
{
if( !IsNts() ) return false=20
SlideObj.style.display=3D"none"
nObj =3D document.all.item("NotesObj")
parent.SetHasNts(0)
if( nObj ) {=20
nObj.style.display=3D""
parent.SetHasNts(1)
}
return 1
}
function ChkAutoAdv()
{
if(SldHasTrans())
SlideObj.onfilterchange=3DAutoAdv
else
AutoAdv()
}
function AutoAdv()
{
if(!IsWin("PPTSld") || !gUseSldTimings )return
var sld=3DGetCurSld()
if( (sld.mAdvDelay>0) && !parent.IsFramesMode() )
setTimeout("parent.GoToNextSld()",sld.mAdvDelay)
}
function GetObj(id)
{
if(g_supportsPPTHTML) return document.all(id);
else return document.getElementById(id);
}
function SldHasTrans() { return SlideObj.style.filter !=3D ""; }
function GetSldId()=20
{
var regExp =3D /file:\/\/\//i
var pos =3D location.href.search(regExp)
if (MHTMLPrefix !=3D "" && pos !=3D -1)
sId =3D location.href.substring(pos)
else
{
sId =3D RemoveFilePrefixFromHref(location.href);
var regExp =3D /\//
var fixedHref =3D sId
var pos =3D -1
=09
pos =3D fixedHref.search(regExp)
while (pos !=3D -1)
{
fixedHref =3D fixedHref.replace(regExp, "\\")
pos =3D fixedHref.search(regExp)
}
=09
if (g_fBaseHyperlink =3D=3D true)
sId =3D "file:///" + fixedHref;
else
sId =3D fixedHref.substring(fixedHref.lastIndexOf('\\') + 1)
}
=09
return sId
}
function HideMenu() { if( frames["PPTSld"] && PPTSld.document.all.item("ctx=
tmenu") && PPTSld.ctxtmenu.style.display!=3D"none" ) { PPTSld.ctxtmenu.styl=
e.display=3D'none'; return true } return false }
function IsWin( name ) { return window.name =3D=3D name }
function IsNts() { return IsWin("PPTNts") }
function IsSldOrNts() { return( IsWin("PPTSld")||IsWin("PPTNts") ) }
function SupportsPPTAnimation() { return( navigator.platform =3D=3D "Win32"=
&& navigator.appVersion.indexOf("Windows")>0 ) }
function SupportsPPTHTML()
{
var appVer=3Dnavigator.appVersion, msie=3DappVer.indexOf("MSIE "), ver=3D0
if( msie >=3D 0 )
ver=3DparseFloat( appVer.substring( msie+5, appVer.indexOf(";",msie) ) )
else
ver=3DparseInt(appVer)
return( ver >=3D 4 && msie >=3D 0 )
}
function _RSW()
{
if( !g_supportsPPTHTML || IsNts() ||
( !g_scaleInFrame && (!IsWin("PPTSld") || !parent.IsFullScrMode()) ) )
return
var padding=3D0;
if( IsWin("PPTSld") && parent.IsFramesMode() ) padding=3D6
cltWidth=3Ddocument.body.clientWidth-padding
cltHeight=3Ddocument.body.clientHeight-padding
factor=3D(1.0*cltWidth)/g_origW
if( cltHeight < g_origH*factor )
factor=3D(1.0*cltHeight)/g_origH
newSize =3D g_origSz * factor
if( newSize < 1 ) newSize=3D1
s=3DSlideObj.style
s.fontSize=3DnewSize+"px"
s.posWidth=3Dg_origW*factor
s.posHeight=3Dg_origH*factor
s.posLeft=3D(cltWidth-s.posWidth+padding)/2
s.posTop=3D(cltHeight-s.posHeight+padding)/2
if( g_scaleHyperlinks )
ScaleHyperlinks( factor )
}
function _InitAnimations()
{
animRuntimeInstalled =3D ''+document.body.localTime !=3D 'undefined';
isFullScreen =3D (window.name =3D=3D "PPTSld") && !parent.IsFramesMode();
g_animUseRuntime =3D g_showAnimation && animRuntimeInstalled && !(isFullSc=
reen && parent.IsSldVisited());
if( g_animUseRuntime ) {
collSeq =3D document.all.tags("seq");
if( collSeq !=3D null ) {
for(ii=3D0;ii numSlds )
gSldJumpIdx =3D numSlds;
if ( gSldJumpIdx >=3D 0 ) {
if ( gSldJumpIdx =3D=3D 0 )
gSldJumpIdx =3D 1;
var jumpTo =3D parseInt(gSldJumpIdx);
gSldJump =3D 0; gSldJumpIdx =3D "";
win.GoToSld( parent.GetSldList().mList[jumpTo-1].mSldHref )
}
}
}
function _KDH()
{
if( event.keyCode =3D=3D 8 ) {
event.returnValue =3D 0;
parent.GoToPrevSld();
}
}
function DocumentOnClick()
{
if( IsNts() || parent.HideMenu() ) return;
if( ( g_allowAdvOnClick && !parent.IsFramesMode() ) ||
(event && (event.keyCode=3D=3D32) ) )
parent.GoToNextSld();
}
var g_supportsPPTHTML =3D SupportsPPTHTML(), g_scaleInFrame =3D 1, gId=3D""=
, g_bgSound=3D"",
g_scaleHyperlinks =3D false, g_allowAdvOnClick =3D 1, g_showInBrowser =
=3D 0, gLoopCont =3D 0, gUseSldTimings =3D 1;
var g_showAnimation =3D g_supportsPPTHTML && SupportsPPTAnimation() && ( (w=
indow.name=3D=3D"PPTSld" && !parent.IsFramesMode()) || g_showInBrowser );va=
r g_animManager =3D null;
var g_animUseRuntime =3D false;
var g_animItemsToHide, g_animInteractiveItems, g_animSlideTime;
var g_animMainSequence =3D null;
var ENDSHOW_MESG=3D"End of slide show, click to exit.", SCREEN_MODE=3D"Fram=
es", gIsEndShow=3D0, NUM_VIS_SLDS=3D24, SCRIPT_HREF=3D"script.js", FULLSCR_=
HREF=3D"fullscreen.htm";
var gCurSld =3D gPrevSld =3D 1, g_offset =3D 0, gNtsOpen =3D gHasNts =3D gO=
tlTxtExp =3D 0, gHasNarration =3D 0, gOtlOpen =3D true
window.gPPTHTML=3DSupportsPPTHTML()
var g_fBaseHyperlink =3D false;
var gMainDoc=3Dnew Array(new hrefList("slide0001.htm",1,-1,1),new hrefList(=
"slide0004.htm",1,-1,1),new hrefList("slide0006.htm",1,-1,1),new hrefList("=
slide0012.htm",1,-1,1),new hrefList("slide0007.htm",1,-1,1),new hrefList("s=
lide0013.htm",1,-1,1),new hrefList("slide0008.htm",1,-1,1),new hrefList("sl=
ide0014.htm",1,-1,1),new hrefList("slide0015.htm",1,-1,1),new hrefList("sli=
de0016.htm",1,-1,1),new hrefList("slide0017.htm",1,-1,1),new hrefList("slid=
e0021.htm",1,-1,1),new hrefList("slide0020.htm",1,-1,1),new hrefList("slide=
0018.htm",1,-1,1),new hrefList("slide0019.htm",1,-1,1),new hrefList("slide0=
022.htm",1,-1,1),new hrefList("slide0023.htm",1,-1,1),new hrefList("slide00=
09.htm",1,-1,1),new hrefList("slide0024.htm",1,-1,1),new hrefList("slide002=
5.htm",1,-1,1),new hrefList("slide0026.htm",1,-1,1),new hrefList("slide0027=
.htm",1,-1,1),new hrefList("slide0011.htm",1,-1,1),new hrefList("slide0003.=
htm",1,-1,1));
/*********************************************
Frameset functions
These functions control slide navigation
and state of the frameset.
**********************************************/
function RemoveFilePrefixFromHref(href)
{
var regExp =3D /^file:\/\/\//i;
return href.replace(regExp, "")
}
function FullScrInit()
{
g_allowAdvOnClick =3D GetCurSld().mAdvOnClk
document.body.style.backgroundColor=3D"black"
document.oncontextmenu=3Dparent._CM;
document.onkeydown =3D _KDH;
document.ondragstart=3DCancel
document.onselectstart=3DCancel
self.focus()
}
function Redirect( frmId )
{=09
var str=3Ddocument.location.hash,idx=3Dstr.indexOf('#'), sId=3DGetSldId()
if(idx>=3D0) str=3Dstr.substr(1);
if( window.name !=3D frmId && ( sId !=3D str) ) {
obj =3D GetObj("Main-File")
window.location.href=3Dobj.href+"#"+sId
return 1
}
return 0
}
var MHTMLPrefix =3D CalculateMHTMLPrefix();=20
function CalculateMHTMLPrefix()
{
if ( document.location.protocol =3D=3D 'mhtml:') {=20
href=3Dnew String(document.location.href)=20
Start=3Dhref.indexOf('!')+1=20
End=3Dhref.lastIndexOf('/')+1=20
if (End < Start)=20
return href.substring(0, Start)=20
else=20
return href.substring(0, End)=20
}
return '';
}
function GetTags(base,tag)
{
if(g_supportsPPTHTML) return base.all.tags(tag);
else return base.getElementsByTagName(tag);
}
function UpdNtsPane(){ if(frames["PPTNts"]) PPTNts.location.replace( MHTMLP=
refix+GetHrefObj( gCurSld ).mNtsHref ) }
function UpdNavPane( sldIndex ){ if(gNavLoaded) PPTNav.UpdNav() }
function UpdOtNavPane(){ if(gOtlNavLoaded) PPTOtlNav.UpdOtlNav() }
function UpdOtlPane(){ if(gOtlLoaded) PPTOtl.UpdOtl() }
function SetHasNts( fVal )
{
if( gHasNts !=3D fVal ) {
gHasNts=3DfVal
UpdNavPane()
}
}
function ToggleOtlText()
{
gOtlTxtExp=3D!gOtlTxtExp
UpdOtlPane()
}
function ClearMedia()
{
// Clear any sounds playing before launching another browser window. Other=
wise,
// in fullscreen mode, you'll continue to hear the sound in the frames mod=
e.
if (PPTSld.pptSound) PPTSld.pptSound.loop =3D 0;
}
function FullScreen()
{=20
if ( PPTSld.g_animUseRuntime )
PPTSld.document.body.pause();
ClearMedia();
var href =3D ( document.location.protocol =3D=3D 'mhtml:') ? FULLSCR_HREF =
: FULLSCR_HREF+"#"+GetHrefObj(gCurSld).mSldHref;
if (MHTMLPrefix !=3D "")
href =3D RemoveFilePrefixFromHref(href)
if(PPTNav.event.ctrlKey) {
var w =3D (window.screen.availWidth * 1.0) / 2.0
var h =3D w * (PPTSld.g_origH * 1.0) / PPTSld.g_origW
win =3D window.open( MHTMLPrefix+href,null,"toolbar=3D0,resizable=3D1,top=
=3D0,left=3D0," + "width=3D"+ w + ",height=3D" + h );
if( win.document.body && PPTSld.g_animUseRuntime )
win.document.body.PPTSldFrameset=3Dwindow;
}
else
{
win =3D window.open( MHTMLPrefix+href,null,"fullscreen=3Dyes" );
if( win.document.body && PPTSld.g_animUseRuntime )
win.document.body.PPTSldFrameset=3Dwindow;
}
}
function ToggleVNarration()
{
rObj=3DPPTSld.document.all("NSPlay")
if( rObj && !PPTSld.g_animUseRuntime ) {
if( (rObj.playState =3D=3D 1)||(rObj.playState =3D=3D 0) )
rObj.Play()
else if( rObj.playState =3D=3D 2 )
rObj.Pause()
else
return;
}
else if( PPTSld.g_animUseRuntime )
{
narObj =3D PPTSld.document.all("narrationID")
if( narObj )
narObj.togglePause()
}
}
function GetCurSldNum()
{ =20
obj=3DGetHrefObj(gCurSld)
if( obj.mOrigVis =3D=3D 1 )
return obj.mSldIdx
else =20
return gCurSld
}
function GetNumSlds()
{ =20
if( GetHrefObj(gCurSld).mOrigVis =3D=3D 1 )
return GetSldList().mNumVisSlds;
else
return GetSldList().mList.length
}
function GetSldNum( href )
{
for(ii=3D0; ii 1 )
PopSldList();
else if( !IsFramesMode() ) {
if( gLoopCont )
GoToFirst()
else
EndShow()
}
}
function GoToPrevSld()
{
ii=3DgCurSld-1
if( ii > 0 ) {
obj=3DGetHrefObj(ii)
while ( obj && ( obj.mVis =3D=3D 0 ) && ( ii>0 ) )
obj=3DGetHrefObj(--ii)
if( ii =3D=3D 0 ) ii=3D1
GoToSldNum(ii)
}
}
function GoToFirst(){ GoToSld( GetHrefObj(1).mSldHref ) }
function GoToLast()
{
ii=3DGetSldList().mList.length
if( ii !=3D gCurSld )
GoToSld( GetHrefObj(ii).mSldHref )
}
function GoToSldNum( num )
{
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
obj =3D GetHrefObj( num )
obj.mVis=3D1
gPrevSld=3DgCurSld
gCurSld =3D num;
=09
if (MHTMLPrefix !=3D "")
PPTSld.location.replace(MHTMLPrefix+RemoveFilePrefixFromHref(obj.mSldHref=
))
else
PPTSld.location.replace(obj.mSldHref)
=09
if( IsFramesMode() ) {
UpdNavPane(); UpdOtlPane(); UpdNtsPane()
}
}
function GoToSld( href )
{
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
GetHrefObj( GetSldNum(href) ).mVis=3D1
if (MHTMLPrefix !=3D "")
PPTSld.location.replace(MHTMLPrefix+RemoveFilePrefixFromHref(href))
else
PPTSld.location.replace(href)
}
function SldUpdated( id )
{
if( id =3D=3D GetHrefObj(gCurSld).mSldHref ) return
gPrevSld=3DgCurSld
gCurSld=3DGetSldNum(id)
if( IsFramesMode() ) {
UpdNavPane(); UpdOtlPane(); UpdNtsPane()
}
}
function PrevSldViewed(){ GoToSld( GetHrefObj(gPrevSld).mSldHref ) }
function HasPrevSld() { return ( gIsEndShow || ( gCurSld !=3D 1 && GetHrefO=
bj( gCurSld-1 ).mVis =3D=3D 1 )||( GetCurSldNum() > 1 ) ) }
function HasNextSld() { return (GetCurSldNum() !=3D GetNumSlds()) }
function CloseWindow() {
if( HideMenu() ) return;
=09
var event =3D PPTSld.event;
if( !IsFramesMode() && event && (event.keyCode=3D=3D27 || event.keyCode=3D=
=3D32 || event.type=3D=3D"click" ) )
window.close( self );
CatchNumKeys( self, event );
}
function Unload() { gIsEndShow=3D0; }
function SetupEndShow() {
gIsEndShow=3D1;
PPTSld.document.body.scroll=3D"no";
PPTSld.document.onkeypress=3DCloseWindow;
PPTSld.document.onclick=3DCloseWindow;
PPTSld.document.oncontextmenu=3D_CM;
}
function EndShow()
{
if( IsFramesMode() ) return
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
doc=3DPPTSld.document
var dir =3D doc.body.dir
if( dir !=3D "rtl" ) dir =3D "ltr";
doc.open()
doc.writeln(' 0) {
PushSldList(sldList,fEnd);
gCurSld =3D 1;
}
else
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
}
function PushSldList(arr,fEnd) {
var ii =3D gSldStack.length;
gSldStack[ii] =3D new SldList(arr,gCurSld,fEnd);
GoToSld( gSldStack[ii].mList[0].mSldHref );
}
function PopSldList() {
if (gSldStack[gSldStack.length-1].fEndShow)
EndShow()
else {
gCurSld =3D gSldStack[gSldStack.length-1].mCurSld;
gSldStack[gSldStack.length-1] =3D null;
gSldStack.length--;
var sldList =3D gSldStack[gSldStack.length-1];
GoToSld( sldList.mList[gCurSld - 1].mSldHref );
}
}
var custShowList=3Dnew Array();
/*********************************************
Navigation button implementation
There are 2 types of buttons: ImgBtn, TxtBtn
implemented as function objects. They share
a similiar interface so the event handlers
can call SetActive, for example, on a button=20
object without needing to know exactly=20
what type of button it is.
**********************************************/
//----------------------------------
function ImgBtn( oId,bId,w,action )
//----------------------------------
{
var t=3Dthis
t.Perform =3D _IBP
t.SetActive =3D _IBSetA
t.SetInactive=3D _IBSetI
t.SetPressed =3D _IBSetP
t.SetDisabled=3D _IBSetD
t.Enabled =3D _IBSetE
t.ChangeIcon =3D null
t.UserAction =3D action
t.ChgState =3D _IBUI
t.mObjId =3D oId
t.mBorderId=3D bId
t.mWidth =3D w
t.mIsOn =3D t.mCurState =3D 0
}
function _IBSetA()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 )
obj.style.posTop=3D0
}
}
function _IBSetI()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 )
obj.style.posTop=3D0=20
}
}
function _IBSetP()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gShadowClr,gHiliteClr,2 )
obj.style.posLeft+=3D1; obj.style.posTop+=3D1
}
}
function _IBSetD()
{ =20
obj=3Dthis.ChgState( gFaceClr,gFaceClr,0 )
obj.style.posTop=3D0=20
}
function _IBSetE( state )
{
var t=3Dthis
GetObj( t.mBorderId ).style.visibility=3D"visible"
if( state !=3D t.mIsOn ) {
t.mIsOn=3Dstate
if( state )
t.SetInactive()
else
t.SetDisabled()
}
}
function _IBP()
{
var t=3Dthis
if( t.mIsOn ) {
if( t.UserAction !=3D null )
t.UserAction()
if( t.ChangeIcon ) {
obj=3DGetObj(t.mObjId)
if( t.ChangeIcon() )
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-4)*t.mWidth
else
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-0)*t.mWidth
}
t.SetActive()
} =20
}
function _IBUI( clr1,clr2,nextState )
{
var t=3Dthis
SetBorder( GetObj( t.mBorderId ),clr1,clr2 )
obj=3DGetObj( t.mObjId )
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-nextState)*t.mWidth-obj=
.style.posTop
t.mCurState=3DnextState
return obj
}
//-----------------------------------------
function TxtBtn( oId,oeId,action,chkState )
//-----------------------------------------
{
var t=3Dthis
t.Perform =3D _TBP
t.SetActive =3D _TBSetA
t.SetInactive=3D _TBSetI
t.SetPressed =3D _TBSetP
t.SetDisabled=3D _TBSetD
t.SetEnabled =3D _TBSetE
t.GetState =3D chkState
t.UserAction =3D action
t.ChgState =3D _TBUI
t.mObjId =3D oId
t.m_elementsId=3D oeId
t.mIsOn =3D 1
}
function _TBSetA()
{
var t=3Dthis
if( t.mIsOn && !t.GetState() )
t.ChgState( gHiliteClr,gShadowClr,0,0 )
}
function _TBSetI()
{
var t=3Dthis
if( t.mIsOn && !t.GetState() )
t.ChgState( gFaceClr,gFaceClr,0,0 )
}
function _TBSetP()
{
if( this.mIsOn )
this.ChgState( gShadowClr,gHiliteClr,1,1 )
}
function _TBSetD()
{ =20
this.ChgState( gFaceClr,gFaceClr,0,0 )
this.mIsOn =3D 0
}
function _TBSetE()
{
var t=3Dthis
if( !t.GetState() )
t.ChgState( gFaceClr,gFaceClr,0,0 )
else
t.ChgState( gShadowClr,gHiliteClr,1,1 )
t.mIsOn =3D 1
}
function _TBP()
{
var t=3Dthis
if( t.mIsOn ) {=20
if( t.UserAction !=3D null )
t.UserAction()
if( !t.GetState )
return
if( t.GetState() )
t.SetPressed()
else
t.SetActive()
} =20
}
function _TBUI( clr1,clr2,lOffset,tOffset )
{
SetBorder( GetObj( this.mObjId ),clr1,clr2 )
Offset( GetObj( this.m_elementsId ),lOffset,tOffset )
}
function Offset( obj, top, left ){ obj.style.top=3Dtop; obj.style.left=3Dle=
ft }
function SetBorder( obj, upperLeft, lowerRight )
{
s=3Dobj.style;
s.borderStyle =3D "solid"
s.borderWidth =3D 1=20
s.borderLeftColor =3D s.borderTopColor =3D upperLeft
s.borderBottomColor=3D s.borderRightColor =3D lowerRight
}
function GetBtnObj(){ return gBtnArr[window.event.srcElement.id] }
function BtnOnOver(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetActive() }
function BtnOnDown(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetPressed() }
function BtnOnOut(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetInactive() }
function BtnOnUp()
{
b=3DGetBtnObj()
if( b !=3D null )
b.Perform()
else
Upd()
}
function GetNtsState(){ return parent.gNtsOpen }
function GetOtlState(){ return parent.gOtlOpen }
function GetOtlTxtState(){ return parent.gOtlTxtExp }
function NtsBtnSetFlag( fVal )
{
s=3Ddocument.all.item( this.m_flagId ).style
s.display=3D"none"
if( fVal )
s.display=3D""
else
s.display=3D"none"
}
function _BSetA_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etActive() }
function _BSetI_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etInactive() }
function _BSetP_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etPressed() }
function _BSetA_BorderImg()
{=20
b =3D gBtnArr[this.mBorderId]=20
if( b !=3D null && this.mIsOn && !b.GetState() ) {
obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 )
obj.style.posTop=3D0
}
}
function _BSetI_BorderImg()
{=20
b =3D gBtnArr[this.mBorderId]
if( b !=3D null && this.mIsOn && !b.GetState() ) {
obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 )
obj.style.posTop=3D0
}
}
var gHiliteClr=3D"THREEDHIGHLIGHT",gShadowClr=3D"THREEDSHADOW",gFaceClr=3D"=
THREEDFACE"
var gBtnArr =3D new Array()
gBtnArr["nb_otl"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOtlPan=
e,GetOtlState )
gBtnArr["nb_otlElem"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOt=
lPane,GetOtlState )
gBtnArr["nb_nts"] =3D new ImgBtn( "nb_nts","nb_ntsBorder",10,parent.ToggleN=
tsPane )
gBtnArr["nb_nts"].SetActive =3D _BSetA_BorderImg;
gBtnArr["nb_nts"].SetInactive =3D _BSetI_BorderImg;
gBtnArr["nb_ntsBorder"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.=
ToggleNtsPane,GetNtsState )
gBtnArr["nb_ntsElem"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.To=
ggleNtsPane,GetNtsState )
gBtnArr["nb_prevBorder"] =3D gBtnArr["nb_prev"]=3D new ImgBtn( "nb_prev","n=
b_prevBorder",30,parent.GoToPrevSld )
gBtnArr["nb_nextBorder"] =3D gBtnArr["nb_next"]=3D new ImgBtn( "nb_next","n=
b_nextBorder",30,parent.GoToNextSld )
gBtnArr["nb_sldshw"]=3D new ImgBtn( "nb_sldshw","nb_sldshwBorder",18,parent=
.FullScreen )
gBtnArr["nb_sldshwBorder"] =3D new TxtBtn( "nb_sldshw","nb_sldshwBorder",pa=
rent.FullScreen,null )
gBtnArr["nb_sldshwBorder"].SetActive =3D _BSetA_Border;
gBtnArr["nb_sldshwBorder"].SetInactive =3D _BSetI_Border;
gBtnArr["nb_sldshwText"] =3D new TxtBtn( "nb_sldshw","nb_sldshwText",parent=
.FullScreen,null )
gBtnArr["nb_sldshwText"].SetActive =3D _BSetA_Border;
gBtnArr["nb_sldshwText"].SetInactive =3D _BSetI_Border;
gBtnArr["nb_voice"] =3D gBtnArr["nb_voiceBorder"] =3D new ImgBtn( "nb_voice=
","nb_voiceBorder",18,parent.ToggleVNarration )
gBtnArr["nb_otlTxtBorder"] =3D gBtnArr["nb_otlTxt"]=3D new ImgBtn( "nb_otlT=
xt","nb_otlTxtBorder",23,parent.ToggleOtlText )
gBtnArr["nb_ntsBorder"].m_flagId=3D "nb_nts"
gBtnArr["nb_ntsBorder"].SetFlag =3D NtsBtnSetFlag
gBtnArr["nb_otlTxt"].ChangeIcon=3D GetOtlTxtState
/*********************************************
Context menu implementation
_CM() is the function that's hooked up to
the oncontextmenu event. Once we're asked to
show the menu, we first build it by creating
DIVs on-the-fly. Then we position it=20
within the screen area so it doesn't get
clipped.
Creating the DIVs using createElement() means
we don't have to write out any extra HTML
into the slide HTML files.
**********************************************/
var sNext=3D"Next",sPrev=3D"Previous",sEnd=3D"End Show",sFont=3D"Arial",sAr=
row=3D"Arrow",sFreeform=3D"Freeform",sRect=3D"Rectangle",sOval=3D"Oval"
function ShowMenu()
{
BuildMenu();
var doc=3DPPTSld.document.body,x=3DPPTSld.event.clientX+doc.scrollLeft,y=
=3DPPTSld.event.clientY+doc.scrollTop
m =3D PPTSld.document.all.item("ctxtmenu")
m.style.pixelLeft=3Dx
if( (x+m.scrollWidth > doc.clientWidth)&&(x-m.scrollWidth > 0) )
m.style.pixelLeft=3Dx-m.scrollWidth
m.style.pixelTop=3Dy
if( (y+m.scrollHeight > doc.clientHeight)&&(y-m.scrollHeight > 0) )
m.style.pixelTop=3Dy-m.scrollHeight
m.style.display=3D""
}
function _CM()
{
if( !parent.IsFullScrMode() ) return;
if(!PPTSld.event.ctrlKey) {
ShowMenu()
return false
} else
HideMenu()
}
function BuildMenu()
{
if( PPTSld.document.all.item("ctxtmenu") ) return
var mObj=3DCreateItem( PPTSld.document.body )
mObj.id=3D"ctxtmenu"
mObj.style.visibility=3D"hidden"
var s=3DmObj.style
s.position=3D"absolute"
s.cursor=3D"default"
s.width=3D"120px"
SetCMBorder(mObj,"menu","black")
var iObj=3DCreateItem( mObj )
SetCMBorder( iObj, "threedhighlight","threedshadow" )
iObj.style.padding=3D2
CreateMenuItem( iObj,sNext,M_GoNextSld,M_True )
CreateMenuItem( iObj,sPrev,M_GoPrevSld,M_HasPrevSld )
=09
CreateSeparator( iObj )
CreateMenuItem( iObj,sEnd,M_End,M_True )
mObj.style.visibility=3D"visible"
}
function Cancel() { window.event.cancelBubble=3Dtrue; window.event.returnVa=
lue=3Dfalse }
function Highlight() { ChangeClr("activecaption","threedhighlight") }
function Deselect() { ChangeClr("threedface","menutext") }
function Perform()
{
e=3DPPTSld.event.srcElement
if( e.type=3D=3D"menuitem" && e.IsActive() )
e.Action()
else
PPTSld.event.cancelBubble=3Dtrue
}
function ChangeClr( bg,clr )
{
e=3DPPTSld.event.srcElement
if( e.type=3D=3D"menuitem" && e.IsActive() ) {
e.style.backgroundColor=3Dbg
e.style.color=3Dclr
}
}
function M_HasPrevSld() { return( parent.HasPrevSld() ) }
function M_GoNextSld() { if( gIsEndShow ) M_End(); else GoToNextSld() }
function M_GoPrevSld() { if( gIsEndShow ) { gIsEndShow=3D0; history.back();=
PPTSld.event.cancelBubble=3Dtrue; } else GoToPrevSld() }
function M_True() { return true }
function M_End() { window.close( self ) }
function CreateMenuItem( node,text,action,eval )
{
var e=3DCreateItem( node )
e.type=3D"menuitem"
e.Action=3Daction
e.IsActive=3Deval
e.innerHTML=3Dtext
if( !e.IsActive() )
e.style.color=3D"threedshadow"
e.onclick=3DPerform
e.onmouseover=3DHighlight
e.onmouseout=3DDeselect
s=3De.style;
s.fontFamily=3DsFont
s.fontSize=3D"9pt"
s.paddingLeft=3D2
}
function CreateSeparator( node )
{
var sObj=3DCreateItem( node )
SetCMBorder(sObj,"menu","menu")
var s=3DsObj.style
s.borderTopColor=3D"threedshadow"
s.borderBottomColor=3D"threedhighlight"
s.height=3D1
s.fontSize=3D"0px"
}
function CreateItem( node )
{
var elem=3DPPTSld.document.createElement("DIV")
node.insertBefore( elem )
return elem
}
function SetCMBorder( o,ltClr,rbClr )
{
var s=3Do.style
s.backgroundColor=3D"menu"
s.borderStyle=3D"solid"
s.borderWidth=3D1
s.borderColor=3DltClr+" "+rbClr+" "+rbClr+" "+ltClr
}
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Content-Location: file:///C:/0D7C54D3/cse303-06au-lecture3_files/fullscreen.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
CSE 303 - Autum 2006 - Lecture 3
------=_NextPart_01C6E640.F4F7E520--
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/div>
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