jquery - How do I control the labels on the Y axis in elycharts

Question

The Y axis labels are always starting from 0 and going till a little greater than the highest values in the graph. I want to start from 50 and go till 100 (50,60,70,80,90,100).

The code I am using is as follows:

Html Code: div id='chart_1' style='height:200px;width:400px;' /div

Javascript Code:

$(document).ready(function () {
      $.elycharts.templates['line_basic_3'] = {
        type: "line",
        margins: [22, 10, 20, 30],
        defaultSeries: {
            type: "line",
            rounded: false,
            plotProps: {
                "stroke-width": 5
            }
        },
        series: {
            serie1: {
                type: "line",
                color: "#AAAAAA"
            },
            serie2: {
                type: "line",
                color: "#00AA00"
            },
            serie3: {
                type: "line",
                color: "#0000BB"
            },
            serie4: {
                type: "line",
                color: "green"
            },
            serie5: {
                type: "line",
                color: "black"
            }
        },
        defaultAxis: {
            labels: true,
            labelsProps: {
                fill: "#FFF",
                "font-size": "10px"
            }
        },
        features: {
            grid: {
                draw: [true, false],
                forceBorder: true,
                //ny: 3, // use 10 divisions for y grid
                //nx: 5, // 10 divisions for x grid
                props: {
                    stroke: "#FFF" // color for the grid
                }
            },
            legend: {
                horizontal: true,
                width: 360,
                height: 20,
                x: 30,
                y: 0,
                borderProps: {
                    "fill-opacity": 0.1
                }
            }
        }
    }


$('#chart_1' ).chart({ template: 'line_basic_3', legend: {serie1:'2011',serie2:'2012',serie3:'2013'}, labels: ['Jan','Feb','Mar'], values: {serie1:[20,45,10],serie2:[40,15,35],serie3:[10,30,5]}});"
});