Mine

<script language="javascript" type="text/javascript">
	function openFullscreen()
	{
		var _width = screen.width;
		var _height = screen.height;
		var win = window.open("about:blank", "_blank", "screenX=0, screenY=0, width="+_width+",height="+_height+",toolbars=0");
	}
</script>
<a href="about:blank" onclick="openFullscreen(); return false;">Test Fullscreen</a>