Line Chart

new Proto.Chart($('barchart'), 
	[
		{data: d6, label: "Data 1"},
		{data: d7, label: "Data 2"}
	],
	{
		//since line chart is the default charting view
		//we do not need to pass any specific options for it.
		xaxis: {min: 0, max: 14, tickSize: 1},		
	});