else if (noa == 3)
                {
                    var temp = doco.elements["ad"+sNum].value;

                    if (activePassNo == 1)
                    {
                        if (adtStr.charAt(adtStr.length-1) == "~")
                        {
                            adtStr = adtStr.slice(0, -1);
                        }

                        doco.elements["ad"+sNum].value = adtStr + tempArr[1] + "~" + tempArr[2];
                    }
                    else if (activePassNo == 2)
                    {
                        if (adtStr.charAt(adtStr.length-1) == "~")
                        {
                            adtStr = adtStr.slice(0, -1);
                        }

                        doco.elements["ad"+sNum].value = tempArr[0] + "~" + adtStr + "~" + tempArr[2];
                    }
                    else if (activePassNo == 3)
                    {
                        if (adtStr.charAt(adtStr.length-1) == "~")
                        {
                            adtStr = adtStr.slice(0, -1);
                        }

                        doco.elements["ad"+sNum].value = tempArr[0] + "~" + tempArr[1] + "~" + adtStr;
                    }
                    else
                    {
                        if ((typeof(adtStr) != "undefined") && (typeof(tempArr[parseFloat(activePassNo)]) != "undefined"))
                        {
                            doco.elements["ad"+sNum].value = adtStr + tempArr[parseFloat(activePassNo)];
                        }
                        else if (typeof(adtStr) != "undefined")
                        {
                            doco.elements["ad"+sNum].value = tempArr[0] + "~" + adtStr;                    
                        }
                        else
                        {
                            doco.elements["ad"+sNum].value = adtStr;
                        }
                    }
                }