Google interactive chart with image fallback

gistfile1.js

<script  data-cfasync="false" type="text/javascript" src="//ajax.googleapis.com/ajax/static/modules/gviz/1.0/chart.js"> {
    "dataSourceUrl": "//docs.google.com/spreadsheet/tq?key=0AqGkLMU9sHmLdEJRZ3JkZmI2dGJpZXprNkNfRFhtWnc&transpose=0&headers=1&range=B1%3AF169&gid=1&pub=1",
    "options": {
        "titleTextStyle": {
            "bold": true,
            "color": "#000",
            "fontSize": 16
        },
        "fontName": "Tahoma",
        "animation": {
            "duration": 500
        },
        "colors": ["#3366CC", "none", "#FF9900", "#109618", "#990099", "#0099C6", "#DD4477", "#66AA00", "#B82E2E", "#316395", "#994499", "#22AA99", "#AAAA11", "#6633CC", "#E67300", "#8B0707", "#651067", "#329262", "#5574A6", "#3B3EAC", "#B77322", "#16D620", "#B91383", "#F4359E", "#9C5935", "#A9C413", "#2A778D", "#668D1C", "#BEA413", "#0C5922", "#743411"],
        "theme": "maximized",
        "width": 600,
        "hAxis": {
            "title": "Hour",
            "useFormatFromData": false,
            "minorGridlines": {
                "count": "3"
            },
            "formatOptions": {
                "source": "inline"
            },
            "minValue": 0,
            "viewWindowMode": "pretty",
            "textStyle": {
                "color": "#222",
                "fontSize": "12"
            },
            "format": "0.##",
            "viewWindow": {
                "min": 0,
                "max": 24
            },
            "gridlines": {
                "count": "7"
            },
            "logScale": false,
            "maxValue": 24
        },
        "vAxes": [{
            "title": "Day of week",
            "useFormatFromData": true,
            "minorGridlines": {
                "count": "0"
            },
            "minValue": 0,
            "viewWindowMode": "explicit",
            "textStyle": {
                "color": "#222",
                "fontSize": "12"
            },
            "viewWindow": {
                "min": 0,
                "max": 8
            },
            "gridlines": {
                "count": "8"
            },
            "maxValue": 8
        }, {
            "useFormatFromData": true,
            "minValue": null,
            "viewWindow": {
                "min": null,
                "max": null
            },
            "maxValue": null
        }],
        "bubble": {
            "textStyle": {
                "color": "none"
            }
        },
        "title": "PUNCHCARD CHART: ACTIVITY BY HOUR OF DAY",
        "booleanRole": "certainty",
        "height": 400,
        "legend": "none",
        "tooltip": {}
    },
    "state": {},
    "view": {
        "columns": [0, 1, 2, {
                "label": "visible",
                "properties": {
                    "role": "annotation"
                },
                "sourceColumn": 3
            },
            4
        ]
    },
    "isDefaultVisualization": true,
    "chartType": "BubbleChart",
    "chartName": "Chart1"
} </script>
<noscript><img src="https://docs.google.com/spreadsheet/oimg?key=0AqGkLMU9sHmLdEJRZ3JkZmI2dGJpZXprNkNfRFhtWnc&oid=2&zx=yz2b1r3apo7c" /></noscript>