function LconvertToSRT() 

{
    var arr = getArray();
    var subStr = "-->";

    if (arr[0].indexOf(subStr) < 0) 

   {
        for (var i = 0; i < arr.length; i++) {
            var timeRe = /\d{2}:\d{2}/i;
            var timeStart = "00:" + arr[i].match(timeRe) + ",200";

            var j = parseInt(i) + parseInt(1);
            if (j < arr.length) {
                var timeEnd = "00:" + arr[i + 1].match(timeRe) + ",200";
            }
            var speakStr = arr[i].replace(/\d{2}:\d{2}\s/, "");
            arr[i] = j + "\n" + timeStart + " --> " + timeEnd + "\n" + speakStr + "\n\n";
        }

        arr.pop();
        var fullText = arr.join("");
        document.getElementById("source").value = fullText;
    }
}