JavaScript DHTML/Event onMethod/onLoseCapture
"onLoseCapture" Example
<head>
</head>
<body onload="captureMode.setCapture()"
onclick="captureMode.releaseCapture()">
<div id="captureMode" onlosecapture="alert("Mouse capture terminated.")">
<p>Mouse capture is currently turned on.
To terminate mouse capture mode, click this page!</p>
</div>
</body>