yaxis.max.toFixed(2));
		});

		placeholder.bind("plotzoom", function (event, plot) {
			var axes = plot.getAxes();
			$(".message").html("Zooming to x: "  + axes.xaxis.min.toFixed(2)
			+ " &ndash; " + axes.xaxis.max.toFixed(2)
			+ " and y: " + axes.yaxis.min.toFixed(2)
			+ " &ndash; " + axes.yaxis.max.toFixed(2));
		});

		// add zoom out button 

		$("<div class='button' style='right:20px;top:20px'>zoom out</div>")
			.appendTo(placeholder)
			.click(function (event) {
				event.preventDefault();
				p