Creating a Slide Show Using a Random Number Generator
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/*
Learn How to Program Using Any Web Browser
by Harold Davis
Apress CopyRight 2004
ISBN: 1590591135
*/
<HTML>
<HEAD>
<TITLE>Slide Show</TITLE>
</HEAD>
<BODY bgcolor=black text=white>
<SCRIPT>
var gardenPix = new Array
("","http://www.bearhome.com/garden/images/gard1.jpg",
"http://www.bearhome.com/garden/images/gard2.jpg",
"http://www.bearhome.com/garden/images/gard3.jpg",
"http://www.bearhome.com/garden/images/gard4.jpg",
"http://www.bearhome.com/garden/images/gard5.jpg",
"http://www.bearhome.com/garden/images/gard6.jpg",
"http://www.bearhome.com/garden/images/gard7.jpg",
"http://www.bearhome.com/garden/images/gard8.jpg",
"http://www.bearhome.com/garden/images/gard9.jpg",
"http://www.bearhome.com/garden/images/gard10.jpg");
var whichPic = 1;
var timeOutId;
function inOrder() {
showPic(whichPic);
whichPic ++;
if (whichPic > 10)
whichPic = 1;
status = whichPic;
timeOutId=setTimeout("inOrder();",1000);
}
function showRandom() {
whichPic = Math.floor(Math.random() * 11);
if (whichPic == 0)
whichPic = 1;
showPic(whichPic);
status = whichPic;
timeOutId=setTimeout("showRandom();",1000);
}
function showPic(i) {
document.images[0].src=gardenPix[i];
}
// End code hiding from ancient browsers -->
</SCRIPT>
<H1>View a slide show of our garden today!</H1>
<FORM>
<TABLE cellpadding=20 cellspacing=2 0>
<TR>
<TD>
<INPUT type=button value="Show in Order" name=theButton
onClick="inOrder();">
</TD>
<TD>
<INPUT type=button value="Random and Repeat"
name=theButton onClick="showRandom();">
</TD>
<TD>
<INPUT type=button value="Stop" name=theButton
onClick="clearTimeout(timeOutId);">
</TD>
</TR>
</TABLE>
<BR>
</FORM>
<IMG name=slideshow src="http://www.bearhome.com/garden/images/gard6.jpg"
width=500 border=5>
</BODY>
</HTML>
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