js 导出到excel 最新兼容火狐谷歌ie11

   function isIE() { //ie?
            if (!!window.ActiveXObject || "ActiveXObject" in window)
                return true;
            else
                return false;
        }
        function getXlsFromTbl(inTblId, inWindow) {
            try {
                var allStr = "";
                var curStr = "";
                var fileName = getExcelFileName();
                //                var cc = document.all;
                //                var ccc = typeof (document.all)
                //                alert(cc)
                //                alert(ccc)
                if (inTblId != null && inTblId != "" && inTblId != "null") {
                    var hh = isIE();
                    if (hh == true) //IE浏览器
                    {
                        curStr = getTblData(inTblId, inWindow);
                        if (curStr != null) {
                            allStr += curStr;
                        }
                        else {
                            alert("你要导出的表不存在！");
                            return;
                        }
                        doFileExport(fileName, allStr);
                    } else {
                        curStr = getTblData1(inTblId, inWindow);
                        if (curStr != null) {
                            allStr += curStr;
                        }
                        else {
                            alert("你要导出的表不存在！");
                            return;
                        }
                        var uri = ‘data:text/xls;charset=utf-8,\ufeff‘ + encodeURIComponent(allStr);
                        //创建a标签模拟点击下载
                        var downloadLink = document.createElement("a");
                        downloadLink.href = uri;
                        downloadLink.download = fileName;
                        document.body.appendChild(downloadLink);
                        downloadLink.click();
                        document.body.removeChild(downloadLink);
                    }
                }
            }
            catch (e) {
                alert("导出发生异常:" + e.name + "->" + e.description + "!");
            }
        }
        function getTblData(inTbl, inWindow) {
            var rows = 0;
            //alert("getTblData is " + inWindow);
            var tblDocument = document;
            if (!!inWindow && inWindow != "") {
                if (!document.all(inWindow)) {
                    return null;
                }
                else {
                    tblDocument = eval(inWindow).document;
                }
            }
            var curTbl = tblDocument.getElementById(inTbl);
            var outStr = "";
            if (curTbl != null) {
                for (var j = 0; j < curTbl.rows.length; j++) {
                    //alert("j is " + j);
                    for (var i = 0; i < curTbl.rows[j].cells.length; i++) {
                        //alert("i is " + i);
                        if (i == 0 && rows > 0) {
                            outStr += " \t";
                            rows -= 1;
                        }
                        outStr += curTbl.rows[j].cells[i].innerHTML + " \t";
                        if (curTbl.rows[j].cells[i].colSpan > 1) {
                            for (var k = 0; k < curTbl.rows[j].cells[i].colSpan - 1; k++) {
                                outStr += " \t";
                            }
                        }
                        if (i == 0) {
                            if (rows == 0 && curTbl.rows[j].cells[i].rowSpan > 1) {
                                rows = curTbl.rows[j].cells[i].rowSpan - 1;
                            }
                        }
                    }
                    outStr += "\r\n";
                }
            }
            else {
                outStr = null;
                alert(inTbl + "不存在!");
            }
            return outStr;
        }
        function getTblData1(inTbl, inWindow) {
            var rows = 0;
            var tblDocument = document;
            //tblDocument = eval(inWindow).document;
            var curTbl = tblDocument.getElementById(inTbl);
            var outStr = "";
            if (curTbl != null) {
                for (var j = 0; j < curTbl.rows.length; j++) {
                    for (var i = 0; i < curTbl.rows[j].cells.length; i++) {

                        if (i == 0 && rows > 0) {
                            outStr += ","; // \t";
                            rows -= 1;
                        }

                        outStr += curTbl.rows[j].cells[i].innerHTML + ","; //\t";
                        if (curTbl.rows[j].cells[i].colSpan > 1) {
                            for (var k = 0; k < curTbl.rows[j].cells[i].colSpan - 1; k++) {
                                outStr += ","; // \t";
                            }
                        }
                        if (i == 0) {
                            if (rows == 0 && curTbl.rows[j].cells[i].rowSpan > 1) {
                                rows = curTbl.rows[j].cells[i].rowSpan - 1;
                            }
                        }
                    }
                    outStr += "\r\n";
                }
            }
            else {
                outStr = null;
                alert(inTbl + "不存在 !");
            }
            return outStr;
        }
        function getExcelFileName() {
            var d = new Date();
            var curYear = d.getYear();
            var curMonth = "" + (d.getMonth() + 1);
            var curDate = "" + d.getDate();
            var curHour = "" + d.getHours();
            var curMinute = "" + d.getMinutes();
            var curSecond = "" + d.getSeconds();
            if (curMonth.length == 1) {
                curMonth = "0" + curMonth;
            }
            if (curDate.length == 1) {
                curDate = "0" + curDate;
            }
            if (curHour.length == 1) {
                curHour = "0" + curHour;
            }
            if (curMinute.length == 1) {
                curMinute = "0" + curMinute;
            }
            if (curSecond.length == 1) {
                curSecond = "0" + curSecond;
            }
            var fileName = "阳光印网" + "_" + curYear + curMonth + curDate + "_"
            + curHour + curMinute + curSecond + ".xls";
            //alert(fileName);
            return fileName;
        }
        function doFileExport(inName, inStr) {
            var xlsWin = null;
            if (!!document.all("glbHideFrm")) {
                xlsWin = glbHideFrm;
            }
            else {
                var width = 6;
                var height = 4;
                var openPara = "left=" + (window.screen.width / 2 - width / 2)
   + ",top=" + (window.screen.height / 2 - height / 2)
   + ",scrollbars=no,width=" + width + ",height=" + height;
                xlsWin = window.open("", "_blank", openPara);
            }
            xlsWin.document.write(inStr);
            xlsWin.document.close();
            xlsWin.document.execCommand(‘Saveas‘, true, inName);
            xlsWin.close();
        }