How to detect side mouse clicks in Javascript?

Is it 开发者_开发知识库possible to detect using JavaScript when the user clicks the back/forward buttons that are the side of your mouse ? These are known as XButtons as far as I know, in .net at least. This is for a locally installed app so I don't need cross browser support, just something that works in IE.

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This cannot be done. The most sophisticated mouse click events you will get is left and right.

<script type="text/javascript" language="javascript">
    function testMouseClick()
    {
        if(event.button == 1)
        {
        alert("Left Mouse Click is Pressed..");
        }
        if(event.button == 2)
        {
        alert("Right Mouse Click is Pressed..");
        }               
    }
</script><

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No, don't think so, by the time it gets to the browser it's been translated into whatever action the button is bound to