<div id="IMContentTest">

        <textarea name="IMContent" class="IMClass" style="color:#ff0000;width:510px; height: 50px;" id="Textarea0"></textarea>

        <textarea name="IMContent" class="IMClass" style="color:#ff0000;width:510px; height: 50px;" id="Textarea1"></textarea><br/><br/>

        <textarea name="IMContent" class="IMClass" style="color:#ff0000;width:510px; height: 50px;" id="Textarea2"></textarea><br/><br/>

        <textarea name="IMContent" class="IMClass" style="color:#ff0000;width:510px; height: 50px;" id="Textarea3"></textarea><br/><br/>

        <textarea name="IMContent" class="IMClass" style="color:#ff0000;width:510px; height: 50px;" id="Textarea4"></textarea>

    </div>

       //变量定义

        var testflag = 0, t, sipaccount, fruency, count = 0, se1, se2, m = 0, h = 0, s = 0, ss = 1;

        var testcontent

        //时、分、秒、毫秒的计算

        function second(showtimeTag) {

            if ((ss % 100) == 0) {

                s += 1; ss = 1;

            }

            if (s > 0 && (s % 60) == 0) {

                m += 1; s = 0;

            }

            if (m > 0 && (m % 60) == 0) {

                h += 1; m = 0;

            }

            document.getElementById(showtimeTag).value = h + "时" + m + "分" + s + "秒";

            ss += 1;

        }

        var ImContentList = "";

       //获得一个0到4的随机整数

        function getNumber() {

            var random = 4 * Math.random();

            if (!isNaN(random) && isFinite(random)) {

                return parseInt(random);

            }

        }

        //发送消息动作

        function sendmessage() {

            var IMContents = $(".IMClass");

            $(IMContents).each(function () {

                if ($(this).attr("value") != undefined)

                    ImContentList += $(this).attr("value") + ",";

            });

            ImContentList = ImContentList.substr(0, ImContentList.length - 1);

            var contentlist = ImContentList.split(',');

            var numb = getNumber();

            var content = contentlist[numb];

            //document.forms[0].forms[0].elements[parseInt(5 * Math.random())].value

            testcontent = "[" + sip + "]" + " [ " + count + " ]" + "[ " + h + "时" + m + "分" + s + "秒" + " ] " + "  " + content;          

            count++;

        }

        //开始测试

        function starttest(showtimeTag) {

            var time = parseInt(document.getElementById("secondText").value) * 1000;

            var temp1 = "second(\"" + showtimeTag + "\")";

            var temp2 = "sendmessage()";

            se1 = self.setInterval(temp1, 10);

            se2 = self.setInterval(temp2, time);

        }

        //暂停测试

        function pausetest() {

            window.clearInterval(se1);

            window.clearInterval(se2);

        }

        //停止测试

        function stoptest() {

            window.clearInterval(se1);

            window.clearInterval(se2);

            testflag = 0;

            ss = 1;

            m = h = s = 0;

            document.getElementById("showtime").value = "0时0分0秒";

        }