title: How can I get the max value of a y axis at highcharts?
body: <p>How can I get the max value of a y axis at highcharts? </p>
  
  <p>i.e. <a href="http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/line-basic/">http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/line-basic/</a> here max value is <strong>30</strong>. If you disable New York and Tokyo it is <strong>20</strong> and so on.</p>
  
  <p>Any ideas?</p>