Export html table to excel directly by using javascript

I trying to export the html table  to excel by using javascript and I managed to get the sample  ( source code as below).The sample below will automatically export all the records in html table into excel directly.


function write_to_excel()
{
str="";
var mytable = document.getElementsByTagName("table")[0];
var rowCount = mytable.rows.length;
var colCount = mytable.getElementsByTagName("tr")[0].getElementsByTagName("td").length;
var ExcelApp = new ActiveXObject("Excel.Application");
var ExcelSheet = new ActiveXObject("Excel.Sheet");
ExcelSheet.Application.Visible = false;
 for(var i=0; i<rowCount; i++)
 {
  for(var j=0; j<colCount; j++)
  { 
   str= mytable.getElementsByTagName("tr")[i].getElementsByTagName("td")[j].innerHTML;
   ExcelSheet.ActiveSheet.Cells(i+1,j+1).Value = str;
  }
 }

ExcelSheet.SaveAs("C:\\TEST.XLS");
// Close Excel with the Quit method on the Application object.
ExcelSheet.Application.Quit();
}


function write_to_csv()
{
str="";
var mytable = document.getElementsByTagName("table")[0];
var rowCount = mytable.rows.length;
var colCount = mytable.getElementsByTagName("tr")[0].getElementsByTagName("td").length;
var ExcelApp = new ActiveXObject("Excel.Application");
var ExcelSheet = new ActiveXObject("Excel.Sheet");
ExcelSheet.Application.Visible = true;
var mytable = document.getElementsByTagName("table")[0];
var rowCount = mytable.rows.length;
var colCount = mytable.getElementsByTagName("tr")[0].getElementsByTagName("td").length;
 for(var i=0; i<rowCount; i++)
 {
  for(var j=0; j<colCount; j++)
  {
   str= str + mytable.getElementsByTagName("tr")[i].getElementsByTagName("td")[j].innerHTML + ","; 
  }
  ExcelSheet.ActiveSheet.Cells(i+1,1).Value = str;
  str="";
 }
}

</script>

</head>
<body>
<input type="submit" value="Export to EXCEL" onclick="write_to_excel();"/>
<input type="submit" value="Export to CSV" onclick="write_to_csv();"/>

<br />
<div id="Book1_10219" align=center x:publishsource="Excel">
<table>
<tr><td>123</td><td>test 2</td></tr>
<tr><td>test5</td><td>test 2</td></tr>
</table>
</div>
<body>
</html>