Manually intiate keyboard events

hi,
i want minimize browser on one button click.
for browser minimize kty is alt+space+n and i want to intiate this keys using init keys is it possible?
i ahev tried to do this like below

[code]
<script type=”text/javascript”>
function minimizew(event){
try{

if(!event){
event=window.event;
}
var e = document.createEvent(“KeyboardEvent”);
var text=document.getElementById(“minimize”);
document.body.focus();
// document.body.addEventListener(‘keydown’, function(e){alert(e.keyCode);}, true);
e.initKeyEvent(“keypress”, // in DOMString typeArg,

true, // in boolean canBubbleArg,
true, // in boolean cancelableArg,
null, // in nsIDOMAbstractView viewArg, Specifies UIEvent.view. This value may be null.
false, // in boolean ctrlKeyArg,
false, // in boolean altKeyArg,
false, // in boolean shiftKeyArg,
false, // in boolean metaKeyArg,
18, null); // key code.
document.body.dispatchEvent(e);
event.returnValue = false;
e.initKeyEvent(“keypress”, // in DOMString typeArg,

true, // in boolean canBubbleArg,
true, // in boolean cancelableArg,
null, // in nsIDOMAbstractView viewArg, Specifies UIEvent.view. This value may be null.
false, // in boolean ctrlKeyArg,
false, // in boolean altKeyArg,
false, // in boolean shiftKeyArg,
false, // in boolean metaKeyArg,
32, null); // key code.
text.dispatchEvent(e);
event.returnValue = false;
e.initKeyEvent(“keypress”, // in DOMString typeArg,

true, // in boolean canBubbleArg,
true, // in boolean cancelableArg,
null, // in nsIDOMAbstractView viewArg, Specifies UIEvent.view. This value may be null.
false, // in boolean ctrlKeyArg,
false, // in boolean altKeyArg,
false, // in boolean shiftKeyArg,
false, // in boolean metaKeyArg,
78, null); // key code.
text.dispatchEvent(e);
event.returnValue = false;

}
catch (err){
alert(err.description);
}
}
</script>

<input alt=”Close” type=”button” style=”text-decoration:none;font-weight: bold;font-size:11px; cursor:pointer;right: 25px; top: 3px;height:21px; position: absolute;width:20px” onclick=”minimizew(event);” id=”minimize” value=”-“/>
[/code]

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