deleting a row in excel worksheet using Javascript ActiveX Excel Object

Hi,
Im opening an excel worksheet and adding data to it using Javascript ActiveX Excel Object with the code below.
In the code the column A in excel worksheet will have a unique value.
I need to delete the entire row matching the value in column A and shift the
rest of the rows up using this Javascript ActiveX Excel Object.

Please help me with the solution

var Excel,Book;
Excel = new ActiveXObject("Excel.Application");
Book = Excel.Workbooks.Open("c:/example.xls");
var excel_sheet = Book.Worksheets("Sheet1");
Excel.Visible = false;
var i=1;
while(excel_addsheet.Cells(i,1).Value!=null)
{
excel_addsheet.Cells(i,1).Value = i;
excel_addsheet.Cells(i,2).Value = "text1"
excel_addsheet.Cells(i,3).Value = "text2"
excel_addsheet.Cells(i,4).Value = "text3"
i++;
}
Book.Save;
Application.Excel.Quit();

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