黑羽隨筆

                //生一個IFRAME出來
                 var iframe = document.createElement("iframe");
               //把檔案網址丟給IFRAM
                 iframe.src = "modules/code_backup_download.php?file_name="+file_name;
                //把IFRAME設為不顯示
                 iframe.style.display = "none";
                 //把IRAME 附加到BODY
                 document.body.appendChild(iframe);