JavaScript DHTML/Event/Alt Key

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"altKey" Example

    
<html>
<head>
<script language="JavaScript">
    function function1() {
        var m = event.altKey;
        if (m == false) {
            alert("The Alt Key is not pressed");
            document.all.myButton.value = "Click here while pressing the Alt key";
        } else if(m == true) {
            alert("The Alt Key is pressed");
            document.all.myButton.value = "Click here"; 
        }
    }
</script>
</head>
<body>
<input id="myButton" type="button" value="Click here" onClick="function1();">
</body>
</html>



"altLeft" Example

    
<html>
<head>
<script language="JavaScript">
    function function1() {
        var m = event.altLeft;
        if (m == false) {
            alert("The Left Alt Key is not pressed");
            document.all.myButton.value = "Click here while pressing the Alt key";
        } else if(m == true) {
            alert("The Alt Key is pressed");
            document.all.myButton.value = "Click here"; 
        }
    }
</script>
</head>
<body>
<input id="myButton" type="button" value="Click here" onClick="function1();">
</body>
</html>
Источник — «http://wbex.ru/index.php?title=JavaScript_DHTML/Event/Alt_Key&oldid=2129»