Date vetting: start/end dates not in past, start date must be <=end date

onchange catalog client script code:

start date 'access_from' variable:

function onChange(control, oldValue, newValue, isLoading) {

    if (isLoading || newValue == '') {

        return;

    }

    var ga = new GlideAjax('servicerequest_ajax');

    ga.addParam('sysparm_name', 'validate_fromto_dates');

    ga.addParam('sysparm_startdate',newValue);

    ga.addParam('sysparm_date_entered',newValue);

    ga.addParam('sysparm_enddate',g_form.getValue('access_to'));

    ga.getXMLAnswer(function(answer) {

        //alert(answer);

        var res=answer.split(':');

       

        if (res[1]!="OK" ){

            alert('Check dates--' + res[1]);

            g_form.setValue('access_from', '');

            return false;

        }

    });

   

}

end date 'access_to' variable:

function onChange(control, oldValue, newValue, isLoading) {

    if (isLoading || newValue == '') {

        return;

    }

   

    var ga = new GlideAjax('servicerequest_ajax');

    ga.addParam('sysparm_name', 'validate_fromto_dates');

    ga.addParam('sysparm_enddate',newValue);

    ga.addParam('sysparm_date_entered',newValue);

    ga.addParam('sysparm_startdate',g_form.getValue('access_from'));

    ga.getXMLAnswer(function(answer) {

        //alert(answer);

        var res=answer.split(':');

       

        if (res[1]!="OK" ){

            alert('Check dates--'+res[1]);

            g_form.setValue('access_to', '');

            return false;

        }

    });

   

}

ajax script include code:

var servicerequest_ajax = Class.create();

servicerequest_ajax.prototype = Object.extendsObject(AbstractAjaxProcessor, {

   

     

    validate_fromto_dates: function(){

        //--validate that end date>start date, dates not in past

        var startDateEntered=new GlideDate();

        var endDateEntered=new GlideDate();

        var dateNow=new GlideDate();

        var dateEntered=new GlideDate();

        sReturn='RESULT:OK';

        //alert('blah!');

        var sd_param=this.getParameter('sysparm_startdate');

        var ed_param=this.getParameter('sysparm_enddate');

        var de_param=this.getParameter('sysparm_date_entered');

       

        startDateEntered.setDisplayValue(sd_param);

        endDateEntered.setDisplayValue(ed_param);

        dateEntered.setDisplayValue(de_param);

        var dateNowF=new GlideDate();

        dateNowF.setDisplayValue(dateNow);

       

        if(dateEntered<dateNowF){

            sReturn='RESULT:date in past entered';

        }

       

        //sReturn='SD:' + startDateEntered + ';ED:' + endDateEntered + ';DE:' + dateEntered + ';DN:' + dateNowF + ';true/false=' + (dateEntered>=dateNowF).toString();//--for testing

       

       

        if (de_param==sd_param){

            //--start date onchange script

            sReturn=sReturn+ ':start date';

        }

        if (de_param==ed_param){

            //--end date onchange script

            sReturn=sReturn+ ':end date';

        }

        if (sd_param!='' && ed_param!=''){

            if(endDateEntered<startDateEntered){

                sReturn='RESULT:end date must not be before start date';

            }

        }

       

        return sReturn;

    },

   

    type: 'servicerequest_ajax'

});