Merging word template through .jsp url

I have to add a word template to an existing .jsp.  this is the code for the jsp.  when the print button is clicked, the template should be opened with the merged fields. here's the .jsp code

function printClicked () {
            document.mainForm.order_Letter_No.focus();
            document.mainForm.order_Letter_No.select();
            Copied = document.mainForm.order_Letter_No.createTextRange();
            Copied.execCommand("Copy");
            var objWord = new ActiveXObject("Word.Application");
            if (objWord != null)
              {
              var templett = document.mainForm.corres_List.options[document.mainForm.corres_List.selectedIndex].value
              
                  switch (templett)
                  {
                        case "orderletter":
                              if (document.mainForm.country_Code.value == "US") {
                                    objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/LPPCIUS.dot");      
                                    }
                                else
                                    {
                                    objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/LPPCI.dot");            
                                    }
                              break;
                        case "filingreceipt":
                              objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/filingreceipt.dot");
                              break;
                        case "noticeofpublication":
                              objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/noticeofpublication.dot");
                              break;
                        case "noticeofallowance":
                              objWord.Documents.Open("http://ncr-test/Ladas/LPPCI/noticeofallowance.dot");
                              break;                  
                        case "transmittalletter":
                              objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/transmittalletter.dot");
                              break;                        
                        case "filingpriority":
                                    objWord.Documents.Open("http://ncr-tomcat/Ladas/LPPCI/filingpriority.dot");
                                    break;
                  }            
            
            objWord.Visible = true;
//            objWord.Selection.Paste();
      }
      }