Is alt key pressed during the mouse click : Mouse Event : Event JAVASCRIPT TUTORIALS

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Is alt key pressed during the mouse click



<html>
<head>
<title>Mouse Events Example</title>
<script type="text/javascript">
    function handleEvent(oEvent) {
        var oTextbox = document.getElementById("txt1");
        oTextbox.value += "n    button down is " + oEvent.button;

        var arrKeys = [];
        if (oEvent.altKey) {
            arrKeys.push("Alt");
        }
        oTextbox.value += "n    keys down are " + arrKeys;
    }
</script>
</head>
<body>
<P>Use your mouse to click and double click the red square.</p>
<div style="width: 100px; height: 100px; background-color: red"
     onclick="handleEvent(event)"
     id="div1"></div>
<P><textarea id="txt1" rows="15" cols="50"></textarea></p>
</body>
</html>