var _jq, _hc;
var jqsrc = "http://code.jquery.com/jquery-1.7.min.js";
var hcsrc = "http://code.highcharts.com/highcharts.js";

function checkJquery() {
    if(typeof(jQuery) == "function") {
        window.clearInterval(_jq);
        initHighcharts();
    }
}
function checkHighcharts() {
    if(typeof(jQuery("body").highcharts) == "function") {
        window.clearInterval(_hc);
        initTochart();
    }
}
function initJquery() {
    if(typeof(jQuery) != "function") {
        var jq = document.createElement("script");
        jq.type = "text/javascript";
        jq.src = jqsrc;
        document.body.appendChild(jq);

        _jq = window.setInterval(checkJquery, 500);
    } else {
        initHighcharts();
    }
}
function initHighcharts() {
    if(typeof(jQuery("body").highcharts) != "function") {
        var hc = document.createElement("script");
        hc.type = "text/javascript";
        hc.src = hcsrc;
        document.body.appendChild(hc);

        _hc = window.setInterval(checkHighcharts, 500);
    } else {
        initTochart();
    }
}
function initTochart() {
    jQuery.fn.tochart = function(x, s) {
        var title = {}, data = {};
        jQuery.each(jQuery(this).find("tr:first").find("th"), function(i, o) {
            title[i] = jQuery(o).text();
        });

        if(x == undefined) x = 0;
        else if(typeof(x) == "string") {
            for(var i in title) {
                if(title[i] == x) x = i;
            }
        }

        var rows = jQuery(this).find("tr");
        if(typeof(s) == "boolean") {
            rows.sort(function(a, b) {
                return jQuery(a).find("td:eq(" + x + ")").text().localeCompare(jQuery(b).find("td:eq(" + x + ")").text()) * (s ? 1 : -1);
            });
        }

        jQuery.each(rows, function(i, o) {
            jQuery.each(jQuery(o).find("td"), function(j, p) {
                if(data[j] == undefined) {
                    data[j] = [];
                }
                if(j == x) {
                    data[j].push(jQuery(p).text());
                } else if(!isNaN(jQuery(p).text())) {
                    data[j].push(parseFloat(jQuery(p).text()));
                } else {
                    data[j].push(0);
                }
            });
        });

        var ys = [];
        for(var i in title) {
            if(x != i) {
                ys.push({name: title[i], data: data[i]});
            }
        }

        jQuery("body").append("<div id=\"__chart\" style=\"display: block;\"></div>");
        jQuery("#__chart").highcharts({
            title: {
                text: ""
            },
            credits: {
                enabled: false
            },
            xAxis: {
                categories: data[x]
            },
            series: ys,
            tooltip: {
                formatter: function() {
                    return this.x + "<br />" + this.series.name + ": " + this.y;
                }
            }
        });
    }    
}

initJquery();