Introduction:
<script type="text/javascript">
function
checkcapslockon(e) {
var
charKeyCode = e.keyCode ? e.keyCode : e.which;
var
shiftKey = e.shiftKey ? e.shiftKey : ((charKeyCode == 16) ? true : false);
if
(((charKeyCode >= 65 && charKeyCode <= 90) && !shiftKey)
|| ((charKeyCode >= 97 && charKeyCode <= 122) &&
shiftKey)) {
alert('Caps
Loc On');
}
else {
alert('Caps
Loc Off');
}
}
</script>
Full source code for ample Application:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Check Capsloc on or not in
Javascript</title>
<script type="text/javascript">
function
checkcapslockon(e) {
var
charKeyCode = e.keyCode ? e.keyCode : e.which;
var
shiftKey = e.shiftKey ? e.shiftKey : ((charKeyCode == 16) ? true : false);
if
(((charKeyCode >= 65 && charKeyCode <= 90) && !shiftKey)
|| ((charKeyCode >= 97 && charKeyCode <= 122) && shiftKey))
{
alert('Caps
Loc On');
}
else {
alert('Caps
Loc Off');
}
}
</script>
</head>
<body>
<form id="form1"
runat="server">
<center>
<fieldset style="width:350px">
<legend><strong>Check
CapslocK ON or OFF using Javascript</strong></legend>
<div>
<br />
Enter
Text:<input
type="text"
id="txtname"
onkeypress="checkcapslockon(event)"/><br /><br />
</div></fieldset></center>
</form>
</body>
</html>
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