function getAlert()
{

    var fromduration = 0;
    var toduration = 0;
    var hours = 0;

    // get the shift start time and date
    var startdateandtime = $('#starttime').val();
    var startdateandtime = startdateandtime.split("-");
    var startdate  = startdateandtime[0];
    var fromdatemonthyear = startdate.split(" ");
    var fromdate = fromdatemonthyear[0];
    var frommonth = fromdatemonthyear[1];
    var fromyear = fromdatemonthyear[2];


    //get the shift end time and date
    var enddateandtime = $('#endtime').val();
    var enddateandtime = enddateandtime.split("-");
    var enddate = enddateandtime[0];
    var todatemonthyear = enddate.split(" ");
    var todate = todatemonthyear[0];
    var tomonth = todatemonthyear[1];
    var toyear = todatemonthyear[2];




    var ward = $("#ward option:selected").text();
    var namenic = $("#name option:selected").text();
    var splitNameNic = namenic.split("-");
    var name = splitNameNic[0];
    var nic = splitNameNic[1];

    var start = new Date(startdateandtime);

    var end = new Date(enddateandtime);

    if(startdateandtime.length == 0||enddateandtime.length == 0 || ward.length == 0|| namenic.length == 0){

            alert("Please Enter all the values");
    }
    else{
    if (end.getFullYear() === start.getFullYear()) {
        if (end.getMonth() === start.getMonth()) {
            if (end.getDate() === start.getDate()) {

                        if (end.getHours() === start.getHours()) {
                                alert("hours and dates are equal check the date");

                         } else if (end.getHours() > start.getHours()) {

                                //no of hours will be calculated
                                //get start hours
                                var starttime = start.getHours();

                                //get end hours
                                var endtime = end.getHours();

                                //no of hours willbe calculated
                                var numberofhoursstart = start.getHours();
                                var numberofhoursend = end.getHours();
                                var totalhours = numberofhoursend - numberofhoursstart;

                                //assigning to variables
                                fromduration = numberofhoursstart;
                                toduration = numberofhoursend;
                                hours = totalhours;
                                CalcalatedTotalOTHours =totalhours;
                               // alert("Total Hours "+totalhours);

                                //send data to controller using addovertimetocontroller method
                                addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                         } else if (end.getHours() < start.getHours()) {

                                alert("wrong input start hours are greater than end hours");

                         }

            } else if (end.getDate() > start.getDate()) {

                        if(end.getDate() === (start.getDate()+1)){

                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            CalcalatedTotalOTHours =totalhours;
                         //   alert("Calculated OT Hours "+totalhours);
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                        }
                        else{
                            alert("you cannot enter more than 2 days of overtime");
                        }

            }else if (end.getDate() < start.getDate()){

                            alert("end date is smaller than start date of the same month of the same year");
            }

        } else if (end.getMonth() > start.getMonth()) {

                        alert("end month greater than start month");
                        if((end.getDate() === 1)&&(start.getDate() === 31)){

                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            alert(totalhours+"End Month greater than StartMonth");
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                        }
                        else if((end.getDate() === 1)&&(start.getDate() === 30)){

                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            alert(totalhours+"End Month greater than StartMonth");
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                        }
                        else if((end.getDate() === 1)&&(start.getDate() === 29)){

                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            alert(totalhours+"End Month greater than StartMonth");
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                        }
                        else if((end.getDate() === 1)&&(start.getDate() === 28)){

                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            CalcalatedTotalOTHours =totalhours;
                            alert(totalhours+"End Month greater than StartMonth");
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);


                        }
                        else{
                            alert("you cannot have more than 24 hours");
                        }
     } else if (end.getMonth() < start.getMonth()) {

                            alert("start month greater than end month");
        }
    } else if (end.getFullYear() > start.getFullYear()) {

                        if((end.getMonth() === 0)&& (start.getMonth() === 11)){

                            if(end.getDate() === 1 && start.getDate() === 31){
                            alert("end year greater than start year");

                            // no of hours will be calculated
                            //get start hours
                            var starttime = start.getHours();
                            //get end hours
                            var endtime = end.getHours();
                            //no of hours willbe calculated
                            var numberofhoursstart = 24 - start.getHours();
                            var numberofhoursend = end.getHours() - 0;
                            var totalhours = numberofhoursstart + numberofhoursend;
                            //assigning to variables
                            fromduration = numberofhoursstart;
                            toduration = numberofhoursend;
                            hours = totalhours;
                            CalcalatedTotalOTHours =totalhours;
                            alert(totalhours+"End Month greater than StartMonth");
                            //send data to controller using addovertimetocontroller method
                            addOvertimeToController(name,nic,ward,fromduration,toduration,starttime,endtime,fromdate,frommonth,fromyear,todate,tomonth,toyear,hours);

                            }else{
                                alert("you cannot have more than 24 hours check the two dates");
                            }

                        }else{
                            alert("you cannot have more than one month differnece");
                        }


    } else if (end.getFullYear() < start.getFullYear()) {

                        alert("wrong Date input Please check the year");
    }

    }
}