<canvas id="canvasMyID" height="200"></canvas>
<script type="text/javascript">
	$(function(){
		var chartSetting={
			config : { 
				title  : 'Set the labelX',
				labelX : ["Mo","Tu","We","Th","Fr","St","Su"],
				scaleY : {min: 0,max:2000,gap:200}
		},
			data : [
			[300,480,700,720,780,1200,1800]
		]
		$('#canvasMyID').jQchart(chartSetting);
	})
</script>
<style>
/* label Y */
.jQchart-labelY-canvasMyID{
	font-size : 8px;
}
/* label X */
.jQchart-labelX-canvasMyID{
	font-size : 12px;
}
</style>