// this function checks id date is like DD/MM/YYYY

function CheckDate(field) {

var d = field.value;

if (d!=="") {

      var amin = 1900;

      var amax = 2100;

      var date = d.split("/");

      var ok=1;

      var msg;

      if ( (date.length < 2) && (ok==1) ) {

        msg = MSG_SEPARATOR.format(field.name);

        alert(msg); ok=0; field.focus();

        return;

      }

      var dd   = date[0];

      var mm   = date[1];

      var yyyy = date[2];

      // checking days

      if ( ((isNaN(dd))||(dd<1)||(dd>31)) && (ok==1) ) {

        msg = MSG_INCORRECT_DAY.format(field.name);

        alert(msg); ok=0; field.focus();

        return false;

      }

      // checking months

      if ( ((isNaN(mm))||(mm<1)||(mm>12)) && (ok==1) ) {

        msg = MSG_INCORRECT_MONTH.format(field.name);

        alert(msg); ok=0; field.focus();

        return false;

      }

      // checking years

      if ( ((isNaN(yyyy))||(yyyy<amin)||(yyyy>amax)) && (ok==1) ) {

        msg = MSG_INCORRECT_YEAR.format(field.name);

        alert(msg); ok=0; field.focus();

        return false;

      }

   }

}

//function test if member is unique and if it's right the member is registred

function unique() {

var msg1;

var msg2;

if (  document.form.check_member.value==1){

    if (document.form.categorycode.value != "I"){

        msg1 += MSG_DUPLICATE_PATRON;

        alert(msg1);

    check_form_borrowers(0);

    document.form.submit();

    }else{

        msg2 += MSG_DUPLICATE_ORGANIZATION;

        alert(msg2);

    check_form_borrowers(0);

    }

}

else

{

    document.form.submit();

}

}

//end function

//function test if date enrooled < date expiry

// WARNING: format-specific test.

function check_manip_date(status) {

if (status=='verify'){

// this part of function('verify') is used to check if dateenrolled<date expiry

if (document.form.dateenrolled !== '' && document.form.dateexpiry.value !=='') {

var myDate1=document.form.dateenrolled.value.split ('/');

var myDate2=document.form.dateexpiry.value.split ('/');

    if ((myDate1[2]>myDate2[2])||(myDate1[2]==myDate2[2] && myDate1[1]>myDate2[1])||(myDate1[2]==myDate2[2] && myDate1[1]>=myDate2[1] && myDate1[0]>=myDate2[0]))

        {

        document.form.dateenrolled.focus();

        var msg = MSG_LATE_EXPIRY;

        alert(msg);

        }

    }

    }

}

//end function

function check_password( password ) {

    if ( password.match(/^\s/) || password.match(/\s$/)) {

        return false;

    }

    return true;

}

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