//==================================================================================
// ============== Variables Declrations Beginnig ===================================
//var theForm = document.frmNavigation;
// p is an abbreviation for "prompt"
var pEntryPrompt = "Please enter a ";
var pDate = "date in the following format mm/dd/yyyy."
var pTime = "time in the following format hh:mm."
var errorStatus = 0;
var errorMonthLength = 1;
var errorLeapYear = 2;
var errorStartDate = 3;
var errorStartTime = 4;
var errorDateOutOfRange = 5;
var errorDateFormat = 6;
var errorHourRange = 7;
var errorMinuteRange = 8;
var errorMonthRange = 9;
var monthsFullName = new Array("","January","February","March","April",
"May","June","July", "August", "September",
"October", "November", "December");
// ============== Variables Declarations Beginnig ==================================
//==================================================================================
// ============== Time Functions Beginnig ==========================================
// Cehck if the time is valid
function isValidTime(hh, mm){
if (hh > 23) {
errorStatus = errorHourRange;
return false;
} else if (mm > 59) {
errorStatus = errorMinuteRange;
return false;
}
return true;
}
function chktime(objName, theField){
//var theForm = document.frmNavigation;
var timefield = objName;
var strTime;
strTime = timefield.value;
if (strTime.length < 1) {
return true;
}
if (strTime.length != 5) {
warnInvalid (objName, theField, "Invalid Time -format is hh:mm.");
return false;
}
if (!CheckTimeFormat(strTime)) {
alert("Invalid Time -format is hh:mm.");
return false;
}
var sHour = strTime.substring(0, 2); // hour
var sMinute = strTime.substring(3, 5); // hour
if ( !isValidTime( sHour, sMinute ) ){
if ( errorStatus == errorHourRange ){
alert("Number of hours entered is greater than 23");
}//if errorStatus
else if ( errorStatus == errorMinuteRange ){
alert("Number of minutes entered is greater than 59");
}//else if errorStatus
return false;
} else { // if !isValidDate
return true;
}
}
function checktime(objName, theField) {
var timefield = objName;
if (chktime(objName, theField) == false) {
timefield.select();
timefield.focus();
return false;
}
else {
return true;
}
}
// ============== Time Functions Ending ============================================
//==================================================================================
// ============== Date Functions Beginnig ==========================================
// Cehck if the date is valid
function isValidDate(dd, mm, yyyy){
var theForm = document.frmNavigation;
var MinDate = theForm.LD_YMD.value; // Minimum Date
var MaxDate = theForm.RD_YMD.value; // Maximum Date
var InDate = yyyy + mm + dd;
if ( mm < 1 || mm > 12) {
errorStatus = errorMonthRange;
return false;
} else if (( mm == 1 || mm == 3 || mm == 5 || mm == 7 || mm == 8 || mm == 10 || mm == 12) && dd > 31) {
errorStatus = errorMonthLength;
return false;
} else if (( mm == 4 || mm == 6 || mm == 9 || mm == 11) && dd > 30 ){
errorStatus = errorMonthLength;
return false;
} else if ( mm == 2 && dd > 29 ) {
errorStatus = errorMonthLength;
return false;
} else if (mm == 2 && yyyy % 4 > 0 && dd > 28){
errorStatus = errorLeapYear;
return false;
} else if ( (InDate < MinDate) || (InDate > MaxDate) ) {
errorStatus = errorDateOutOfRange;
return false;
}// if yyyy % 4
return true;
}//isValidDate
// Check all dates in the array
function chkdate(objName, theField){
//var theForm = document.frmNavigation;
var sDate = objName.value;
var datefield = objName;
var strDate;
strDate = datefield.value;
if (strDate.length < 1) {
return true;
}
if (sDate.length != 10) {
warnInvalid (objName, theField, "Invalid Date -format is mm/dd/yyyy.");
return false;
}
if (!CheckDateFormat(sDate)) {
alert("Invalid Date -format is mm/dd/yyyy.");
return false;
}
sMonth = sDate.substring(0, 2); // month
sDay = sDate.substring(3, 5); // day
sYear = sDate.substring(6, 10); // year
if ( !isValidDate( sDay, sMonth, sYear ) ){
if ( errorStatus == errorMonthRange ){
alert(" A year can not have " + sMonth + " month.");
} else if ( errorStatus == errorMonthLength ){
alert(monthsFullName[parseInt(sMonth,10)] + " can not have " + sDay + " days.");
}//if errorStatus
else if ( errorStatus == errorLeapYear ){
alert(year + " is not a leap year.");
}//else if errorStatus
else if ( errorStatus == errorDateOutOfRange ){
alert( "Data is not available for " + monthsFullName[parseInt(sMonth,10)] + " " + parseInt(sDay,10) + ", " + sYear );
}//else if errorStatus
return false;
} else { // if !isValidDate
return true;
}
}// checkDate
function checkdate(objName, theField) {
var datefield = objName;
if (chkdate(objName, theField) == false) {
datefield.select();
datefield.focus();
return false;
}
else {
return true;
}
}
// ============== Date Functions Ending ============================================
//==================================================================================
// ============== Miscellaneous Functions Beginnig =================================
// Notify user that contents of field theField are invalid.
// String s describes expected contents of theField.value.
// Put select theField, pu focus in it, and return false.
function warnInvalid (objName, theField, s) {
if (theField == "FD") {
objName.select();
alert(s);
objName.focus();
} else if (theField == "TD") {
objName.select();
alert(s);
objName.focus();
} else if (theField == "FT") {
objName.select();
alert(s);
objName.focus();
} else if (theField == "TT") {
objName.select();
alert(s);
objName.focus();
}
return false
}
// Returns true if character c is a digit (0 .. 9).
function isDigit(c)
{ return ((c >= "0") && (c <= "9"))
}
function isBackSlash(c)
{ return ((c == "/"))
}
function isColon(c)
{ return ((c == ":"))
}
// Check that current character is number.
function CheckDateFormat(s) {
if (!isDigit(s.charAt(0))) return false;
if (!isDigit(s.charAt(1))) return false;
if (!isBackSlash(s.charAt(2))) return false;
if (!isDigit(s.charAt(3))) return false;
if (!isDigit(s.charAt(4))) return false;
if (!isBackSlash(s.charAt(5))) return false;
if (!isDigit(s.charAt(6))) return false;
if (!isDigit(s.charAt(7))) return false;
if (!isDigit(s.charAt(8))) return false;
if (!isDigit(s.charAt(9))) return false;
return true;
}
// Check that current character is number.
function CheckTimeFormat(s) {
if (!isDigit(s.charAt(0))) return false;
if (!isDigit(s.charAt(1))) return false;
if (!isColon(s.charAt(2))) return false;
if (!isDigit(s.charAt(3))) return false;
if (!isDigit(s.charAt(4))) return false;
return true;
}
// Display prompt string s in status bar.
function prompt (s) {
window.status = s;
}
// Display data entry prompt string s in status bar.
function promptEntry (s) {
window.status = pEntryPrompt + s;
}
// ============== Miscellaneous Functions Ending ===================================
//==================================================================================
// ============== FORM Beginnig ====================================================
function writeSearchForm() {
var sLD_MDY = document.frmNavigation.LD_MDY.value;
var sRD_MDY = document.frmNavigation.RD_MDY.value;
var sMD_MDY = document.frmNavigation.MD_MDY.value;
var sUDOW = document.frmNavigation.UDOW.value;
var sULD = document.frmNavigation.ULD.value;
var sURD = document.frmNavigation.URD.value;
var sULT = document.frmNavigation.ULT.value;
var sURT = document.frmNavigation.URT.value;
var sUI = document.frmNavigation.UI.value;
var content = "";
//content += ""
// ============== FORM Ending ======================================================
//==================================================================================
return content;
}