function fireKey(el)
{
var key;
switch(el)
{
case "left":
key = 37;
break;
case "right":
key = 39;
break;
case "up":
key = 38;
break;
case "down":
key = 40;
}
if(document.createEventObject) {
var eventObj = document.createEventObject();
eventObj.keyCode = key;
el.fireEvent("onkeydown", eventObj);
} else if(document.createEvent) {
var eventObj = document.createEvent("Events");
eventObj.initEvent("keydown", true, true);
eventObj.which = key;
document.body.dispatchEvent(eventObj);
}
}
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