var newwindow=''
function enlarge(url)
	{
		if(newwindow.location && !newwindow.closed)
			{
				newwindow.location.href=url;
				newwindow.focus();
			}
		else
			{
				newwindow=window.open(url,'htmlname','width=700, height=570, maximize=yes,resizeable=yes,scrollbars=yes,left=10, top=10');
			}
	}