is it possible to have multiple google charts in one page?

I am using Google visualization api. Following is my sample code. Either of the two charts can be shown if it is the only one to be drawn. But I can not get both working. Thanks for your advice.

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta>
        <title>Home Page</title>
        <!--Load the AJAX API-->
        <script type="text/javascript" src="http://www.google.com/jsapi"></script>
        <script type="text/javascript">
            //Load the Visualization API and the ready-made Google table visualization
            google.load('visualization', '1', {'packages':['corechart']});
        </script>

        <script type='text/javascript'>

            function drawA() {
                // Define the chart using setters:
                var wrap = new google.visualization.ChartWrapper();
                wrap.setChartType('ColumnChart');
                wrap.setDataSourceUrl('dataurl');
                wrap.setContainerId('checkin-column');
                wrap.setOptions({'title':'Daily Check-in Numbers', 'width':500,'height':400});
                wrap.draw();
                wrap.getChart();
            }

            function drawB() {
                // Define the chart using setters:
                var wrap = new google.visualization.ChartWrapper();
                wrap.setChartType('ColumnChart');
                wrap.setDataSourceUrl('dataurl2');
                wrap.setContainerId('redemption-table');
                wrap.setOptions({'title':'Redemption History', 'width':500,'height':400});
                wrap.draw();
            }



            function drawVisualization() {
               drawA();
                drawB();

            }


            google.setOnLoadCallback(drawVisualization);
        </script>
    </head>
    <body>



        <div id="checkin-column"/>
        <p/>
        <div id="redemption-table"/>

    </body>
</html>