สอบถามทีครับ javascript จะเปลี่ยน data เป็น yyyy-mm-dd แล้วก็พอจะมีไฟล์ jsp ที่รวม insert update delete ในเพจเดียวไหมครับ

<script language = "Javascript">
                var separator= "/";
                var minYear=1900;
                var maxYear=2500;

                function isInteger(s){
                    var i;
                    for (i = 0; i < s.length; i++){ 
                        // Check that current character is a number or not.
                        var c = s.charAt(i);
                        if (((c < "0") || (c > "9"))) return false;
                    }
                    // All characters are numbers.
                    return true;
                }

                function stripCharsInBag(s, bag){
                    var i;
                    var returnString = "";
                    // Search through string's characters one by one.
                    // If character is not in bag, append to returnString.
                    for (i = 0; i < s.length; i++){ 
                        var c = s.charAt(i);
                        if (bag.indexOf(c) == -1) returnString += c;
                    }
                    return returnString;
                }

                function daysInFebruary (year){
                    // February has 29 days in any year evenly divisible by four,
                    // EXCEPT for centurial years which are not also divisible by 400.
                    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
                }
                function DaysArray(n) {
                    for (var i = 1; i <= n; i++) {
                        this[i] = 31
                        if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
                        if (i==2) {this[i] = 29}
                    } 
                    return this
                }

                function isDate(dtStr){
                    var daysInMonth = DaysArray(12)
                    var pos1=dtStr.indexOf(separator)
                    var pos2=dtStr.indexOf(separator,pos1+1)
                    var strMonth=dtStr.substring(0,pos1)
                    var strDay=dtStr.substring(pos1+1,pos2)
                    var strYear=dtStr.substring(pos2+1)
                    strYr=strYear
                    if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
                    if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
                    for (var i = 1; i <= 3; i++) {
                        if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
                    }
                    month=parseInt(strMonth)
                    day=parseInt(strDay)
                    year=parseInt(strYr)
                    if (pos1==-1 || pos2==-1){
                        alert("The date format should be : MM/DD/YYYY")
                        return false
                    }
                    if (strMonth.length<1 || month<1 || month>12){
                        alert("Please enter a valid month")
                        return false
                    }
                    if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
                        alert("Please enter a valid day")
                        return false
                    }
                    if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
                        alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
                        return false
                    }
                    if (dtStr.indexOf(separator,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, separator))==false){
                        alert("Please enter a valid date")
                        return false
                    }
                    alert("Entered date is valid")
                    return true
                }

                function ValidateDate(){
                    var dt=document.frm.Date_of_Birth
                    if (isDate(dt.value)==false){
                        dt.focus()
                        return false
                    }
                    return true
                }
            </script>