<!doctype html>
<meta charset= "Utf-8" >
<title> Untitled Document </title>
<script type= "Text/javascript" >
//js event handler function
function Test1 () {
Alert ("OK");
}
//Respond to user events
function Test2 () {
X=event.clientx;
Y=event.clienty;
Alert (x+ "---" +y);
}
//Determine what key the user presses
function Showkey (event) {
if (event.keycode==65) {
Window.alert ("A is pressed");
}else if (event.keycode==66) {
Window.alert ("B is pressed");
}
}
</script>
<body body onkeydown= "Showkey (event)" >
<input type= "button" value= "Test1" onclick= "Test1 ()" >
<input type= "button" value= "Test2" onmousedown= "Test2 (event)" >
</body>
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JavaScript Event handling
