function binSearch(element, array, start, end) {

    if (array.length === 0)
        return 0;

    start = start || 0;
    end = end || array.length;

    var pivot = (start + end) >> 1;

    if (end - start <= 1) {

        if (element < array[pivot]) {
            return pivot;
        } else {
            return pivot + 1;
        }
    }

    if (element < array[pivot]) {
        return binSearch(element, array, start, pivot);
    } else if (element > array[pivot]) {
        return binSearch(element, array, pivot, end);
    } else {
        return pivot;
    }

}

function extractErrorMessage(e) {
    if (e.data.indexOf("ERROR:") == 0) {
        return e.data.substring(6, e.data.length);
    } else {
        return "An Unexpected Error Occured.";
    }
}

function setCookie(cname, cvalue, exdate) {
    var expires = "expires=" + exdate.toUTCString();
    document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/;";
}

function getCookie(cname) {
    var name = cname + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return "";
}

function padStart(num, size) {
    var s = num + "";
    while (s.length < size) s = "0" + s;
    return s;
}

function exportCSV(csv, filename) {

    var csvToExport = "\ufeff" + csv; //Prefix csv with UTF-8 BOM to allow encoding to be detected

    var myNav = navigator.userAgent.toLowerCase();
    var isIE = (myNav.indexOf('msie') !== -1) ? parseInt(myNav.split('msie')[1]) : false;

    if (isIE && isIE < 10) { //Internet Explorer 9 and lower

        var IEwindow = window.open();
        IEwindow.document.write(csvToExport);
        IEwindow.document.close();
        IEwindow.document.execCommand('SaveAs', true, filename);
        IEwindow.close();

    } else {

        blob = new Blob([csvToExport], { type: 'text/csv' });

        if (window.navigator && window.navigator.msSaveOrOpenBlob) { //Internet Explorer

            window.navigator.msSaveOrOpenBlob(blob, filename);

        } else { //Other browsers

            var link = document.createElement("a");
            link.id = "lnkDwnldLnk";
            document.body.appendChild(link);

            var csvUrl = window.URL.createObjectURL(blob);

            $("#lnkDwnldLnk")
            .attr({
                'download': filename,
                'href': csvUrl
            });

            $('#lnkDwnldLnk')[0].click();
            document.body.removeChild(link);

        }
    }
}