js table 导出 Excel

function ExportExcel(tableid) {

    var curTbl = document.getElementById(tableid);

    var oXL = new ActiveXObject("Excel.Application");

    var oWB = oXL.Workbooks.Add();

    var oSheet = oWB.ActiveSheet;

    var sel = document.body.createTextRange();

    sel.moveToElementText(curTbl);

    sel.select();

    sel.execCommand("Copy");

    oSheet.Paste();

    //oXL.Visible = true;



    var now = new Date();

    var nowStr = now.format("yyyyMMddhhmmss"); 



    try {

        var fname = oXL.Application.GetSaveAsFilename(nowStr + ".xls", "Excel Spreadsheets (*.xls), *.xls");

        if (fname) {

            oWB.SaveAs(fname);

            oWB.Close(savechanges = false);

            oXL.Quit();

            oXL = null;

            //结束excel进程，退出完成  

            idTmr = window.setInterval("Cleanup();", 1);

        }

        else {

            oXL.Visible = true;

        }

    } catch (e) {

        print("Nested catch caught " + e);

    } finally {



    }

}

function Cleanup() {

    window.clearInterval(idTmr);



    CollectGarbage();

}