For dragging, 
It is only imports three js files that you do. 
    ui.mouse.js,ui.draggable.js,ui.draggable.ext.js
    but... draggable option may be necessary.
dblclick! the chart.
<canvas id="canvasMyID" height="200"></canvas>
<script type="text/javascript">
$(function(){
	$('#canvasMyID')
		.jQchart('./data0.txt')
		.css('background-color','#eee')
});
</script>