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Move Objects Using Keyboard Keys

Description
JavaScript can move images and objects across the screen by simply using keys from the keyboard....View A Script Demo


Do you find it confusing setting up these script?
Java Scripts Magic can do all the hard work for you all At The Touch Of A Button.


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<META NAME="Generator" CONTENT="TextPad 4.4">
<LINK href="general.css" rel="stylesheet" type="text/css">
<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Massimo Giari (motore@iol.it) -->

<!-- Begin
n = (document.layers) ? 1 : 0;
ie = (document.all) ? 1 : 0;
function moveImage() {
if (n) {
block = document.blockDiv;
}
if (ie) {
block = blockDiv.style;
}
block.xpos = parseInt(block.left);
block.active = 0;
document.onkeydown = keyDown;
document.onkeyup = keyUp;
if (n) {
document.captureEvents(Event.keydown | Event.keyup);
   }
}
function keyDown(e) {
if (n) {
var nKey = e.which;
var ieKey = 0;
}
if (ie) {
var ieKey = event.keyCode;
var nKey = 0;
}
if ((nKey == 97 || ieKey == 65) && !block.active) {
block.active = 1;
slideLeft();
}
if ((nKey == 100 || ieKey == 68) && !block.active) {
block.active = 1;
slideRight();
   }
}
function keyUp(e) {
if (n) {
var nKey = e.which;
var ieKey = 0;
}
if (ie) {
var ieKey = event.keyCode;
var nKey = 0;
}
if ((nKey == 97 || ieKey == 65 || nKey == 100 || ieKey == 68))
block.active = 0;
}
function slideRight() {
if (block.active) {
block.xpos += 5;
block.left = block.xpos;
status = block.xpos;
setTimeout("slideRight()", 25);
   }
}
function slideLeft() {
if (block.active) {
block.xpos -= 5;
block.left = block.xpos;
status = block.xpos;
setTimeout("slideLeft()", 25);
   }
}
//  End -->
</script>

</HEAD>

<BODY Background=../graphics/grayback.jpg BODY OnLoad="moveImage()">
<center><BR><BR><BR>
<div id="blockDiv" STYLE="position:absolute; left:317px; top:130px; width:137px; height: 121px">
<img src="alien.gif" width="115" height="63"></div>

Use <b>A</b> to move the image toward left, <b>D</b> to move the image right.


</center>
</BODY>
</HTML>
 

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