/*
'**********************************************************************
' customer         : standard site
' date             : 
' custom version   : 
' standard version : 7.0.3
' notes            :
' last update      :
'**********************************************************************
*/

	browser = navigator.appName;
	browserNum = parseInt(navigator.appVersion);
	
	// Check browser version
	var isNav4 = false;
	var isNav5 = false;
	var isIE4 = false;
		
	if ((browser == "Netscape") && (browserNum < 5))
		{
			// Netscape 4.x
			isNav4 = true;
			isNav5 = false;
			layerRef = "document.layers['";
			endLayerRef = "']";
			styleRef = "";
		}
	else if ((browser == "Netscape") && (browserNum >= 5))
		{
			// Netscape 6
			isNav4 = false;
			isNav5 = true;
			layerRef = "document.getElementById('";
			styleRef = ".style";
			endLayerRef = "')";
		}
	else
		{
			// Internet Explorer
			isIE4 = true;
			layerRef = "document.all['";
			endLayerRef = "']";
			styleRef = ".style";
		}
		
	  //DATE VALIDATION 

		var strSeperator = "/"; 
		// If you are using any Java validation on the back side you will want to use the / because 
		// Java date validations do not recognize the dash as a valid date separator.
		var vDateType = 3; // Global value for type of date format
		// 1 = mm/dd/yyyy
		// 2 = yyyy/dd/mm  (Unable to do date check at this time)
		// 3 = dd/mm/yyyy
		var vYearType = 4; //Set to 2 or 4 for number of digits in the year for Netscape
		var vYearLength = 2; // Set to 4 if you want to force the user to enter 4 digits for the year before validating.
		var err = 0; // Set the error code to a default of zero
        var padMonth = true; // pad Month to 2 digits where necessary
        var padDay = true; // pad Day to 2 digits where necessary

		function DateFormat(vDateName, vDateValue, e, dateCheck, dateType) {
			vDateType = dateType;
			// vDateName = object name
			// vDateValue = value in the field being checked
			// e = event
			// dateCheck 
			// True  = Verify that the vDateValue is a valid date
			// False = Format values being entered into vDateValue only
			// vDateType
			// 1 = mm/dd/yyyy
			// 2 = yyyy/mm/dd
			// 3 = dd/mm/yyyy
			//Enter a tilde sign for the first number and you can check the variable information.

			if (vDateValue == "~") {
   				vDateName.value = "";
				alert("AppVersion = "+navigator.appVersion+" \nNav. 4 Version = "+isNav4+" \nNav. 5 Version = "+isNav5+" \nIE Version = "+
                    isIE4+" \nYear Type = "+vYearType+" \nDate Type = "+vDateType+" \nSeparator = "+strSeperator+
                    " \nPad Month = "+padMonth+" \nPad Day = "+padDay);
				vDateName.focus();
				return true;
            }
                        
            // which=Netscape, keyCode = IE
			var whichCode = (window.Event) ? e.which : e.keyCode;

			// Check to see if a seperator is already present.
			// bypass the date if a seperator is present and the length greater than 8
			if (vDateValue.length > 8 && isNav4) {
				if (vDateValue.indexOf(strSeperator) >= 1)
				return true;
			}
			//Eliminate all the ASCII codes that are not valid
			var alphaCheck = " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\-";
			if (alphaCheck.indexOf(vDateValue) >= 1) {
				if (isNav4) {
					vDateName.value = "";
					vDateName.focus();
					vDateName.select();
					return false;
				} else {
					vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
					return false;
                }
            }
			//Ignore the Netscape value for backspace (8) or the IE value (0)...also ignore any event happening on 'blur'
			if ((whichCode == 8 || whichCode == 0) && e.type =='keyup') {
				return false;
			} else {
				//Create numeric string values for 0123456789/-
				//The codes provided include both keyboard and keypad values
				var strCheck = '48,49,50,51,52,53,54,55,56,57,96,97,98,99,100,101,102,103,104,105,107,109,111,189';
				if (strCheck.indexOf(whichCode) != -1) {
					if (isNav4) {
						if ((vDateValue.length < 6 && dateCheck) && (vDateValue.length >=1)) {
							alert("Invalid Date\nPlease Re-Enter (1)");
							vDateName.value = "";
							vDateName.focus();
							vDateName.select();
							return false;
                        }
						if (vDateValue.length == 6 && dateCheck) {
							var mDay = vDateName.value.substr(2,2);
							var mMonth = vDateName.value.substr(0,2);
							var mYear = vDateName.value.substr(4,4)
							//Turn a two digit year into a 4 digit year
							if (mYear.length == 2 && vYearType == 4) {
							    var mToday = new Date();
						    	//If the year is greater than 30 years from now use 19, otherwise use 20
							    var checkYear = mToday.getFullYear() + 30; 
							    var mCheckYear = '20' + mYear;
							    if (mCheckYear >= checkYear)
							    	mYear = '19' + mYear;
							    else
							    	mYear = '20' + mYear;
                            }
                            var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                            if (!dateValid(vDateValueCheck)) {
                                alert("Invalid Date\nPlease Re-Enter (2)");
                                vDateName.value = "";
                                vDateName.focus();
                                vDateName.select();
                                return false;
                            }
                            return true;
						} else {
                            // Reformat the date for validation and set date type to a 1
                            if (vDateValue.length >= 8  && dateCheck) {
                                if (vDateType == 1) { // mmddyyyy 
                                    var mDay = vDateName.value.substr(2,2);
                                    var mMonth = vDateName.value.substr(0,2);
                                    var mYear = vDateName.value.substr(4,4)
                                    vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
                                }
                                if (vDateType == 2){ // yyyymmdd
                                    var mYear = vDateName.value.substr(0,4)
                                    var mMonth = vDateName.value.substr(4,2);
                                    var mDay = vDateName.value.substr(6,2);
                                    vDateName.value = mYear+strSeperator+mMonth+strSeperator+mDay;
                                }
                                if (vDateType == 3){ // ddmmyyyy
                                    var mMonth = vDateName.value.substr(2,2);
                                    var mDay = vDateName.value.substr(0,2);
                                    var mYear = vDateName.value.substr(4,4)
                                    vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
                                }
                                //Create a temporary variable for storing the DateType and change
                                //the DateType to a 1 for validation.
                                var vDateTypeTemp = vDateType;
                                vDateType = 1;
                                var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                                if (!dateValid(vDateValueCheck)) {
                                    alert("Invalid Date\nPlease Re-Enter (3)");
                                    vDateType = vDateTypeTemp;
                                    vDateName.value = "";
                                    vDateName.focus();
                                    vDateName.select();
                                    return false;
                                }
                                vDateType = vDateTypeTemp;
                                return true;
                            } else {
                                if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1)) {
                                    alert("Invalid Date\nPlease Re-Enter (4)");
                                    vDateName.value = "";
                                    vDateName.focus();
                                    vDateName.select();
                                    return false;
                                }
                            }
                        }
                    } else {  //Non isNav Check
                        //Check general length of date field content
                        if (((vDateValue.length < 6 && dateCheck) || (vDateValue.length > 10 && dateCheck)) && (vDateValue.length >=1)) {
							alert("Invalid Date\nPlease Re-Enter (5)");
							vDateName.value = "";
							vDateName.focus();
							return false;
						}

						// Reformat date to format that can be validated. mm/dd/yyyy
						if (vDateValue.length >= 6 && dateCheck) {

							// Additional date formats can be entered here and parsed out to
							// a valid date format that the validation routine will recognize.
                            var datearray = vDateName.value.split(strSeperator);
                            
                            if (datearray.length != 3) {
								alert("Invalid Date\nPlease Re-Enter (9)");
								vDateName.value = "";
								vDateName.focus();
								return false;
                            }
                                
                            // default format vDateType = 1,  mm/dd/yyyy
							var mMonth = datearray[0];
							var mDay = datearray[1];
							var mYear = datearray[2];

							if (vDateType == 2){ // yyyy/mm/dd
								mYear = datearray[0];
								mMonth = datearray[1];
								mDay = datearray[2];
							}
							if (vDateType == 3){ // dd/mm/yyyy
								mDay = datearray[0];
								mMonth = datearray[1];
								mYear = datearray[2];
							}
							if (vYearLength == 4) {
								if (mYear.length < 4) {
									alert("Invalid Year Length\nPlease Re-Enter (7)");
                                    vDateName.value = "";
 									vDateName.focus();
									return false;
								}
							}
                            
                            //if (mYear.length == 2 && vYearLength==4) {
							    //Turn a two digit year into a 4 digit year
							//	var mToday = new Date();
                            //  var oldMYear = mYear;
                                //If the year is greater than 30 years from now use 19, otherwise use 20
							//	var checkYear = mToday.getFullYear() + 30; 
							//	var mCheckYear = '20' + mYear;
							//	if (mCheckYear >= checkYear)
							//		mYear = '19' + mYear;
							//	else
							//		mYear = '20' + mYear;
                            //  vDateName.value = vDateValue.replace(oldMYear,mYear);
                            //}
                            
                            // pad month and day to 2 chars and year to 4 if necessary
                            if (mMonth.length < 2) {
                                mMonth = "00"+mMonth;
                                mMonth = mMonth.substr(mMonth.length-1,2);
                            }
                            if (mDay.length < 2) {
                                mDay = "00"+mDay;
                                mDay = mDay.substr(mDay.length-1,2);
                            }
                            
							// Create temp. variable for storing the current vDateType
							var vDateTypeTemp = vDateType;
									
							// Change vDateType to a 1 for standard date format for validation
							// Type will be changed back when validation is completed.
							vDateType = 1;
									
							// Store reformatted date to new variable for validation.
							var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
							if (mYear.length == 2 && vYearType == 4 && dateCheck) {
								//Turn a two digit year into a 4 digit year
								var mToday = new Date();
									
								//If the year is greater than 30 years from now use 19, otherwise use 20
								var checkYear = mToday.getFullYear() + 30; 
								var mCheckYear = '20' + mYear;
								if (mCheckYear >= checkYear)
									mYear = '19' + mYear;
								else
									mYear = '20' + mYear;
									
								vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
									
								// Store the new value back to the field.  This function will
								// not work with date type of 2 since the year is entered first.
								//if (vDateTypeTemp == 1) // mm/dd/yyyy
								//	vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
								//if (vDateTypeTemp == 3) // dd/mm/yyyy
								//	vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
							} 
									
							if (!dateValid(vDateValueCheck)) {
								alert("Invalid Date\nPlease Re-Enter (7)");
								vDateType = vDateTypeTemp;
								vDateName.value = "";
								vDateName.focus();
								return false;
							}
								
							vDateType = vDateTypeTemp;
							return true;
                        } else {
                            // if month or day can be only 1 digit long, cannot put in seperators since
                            // its difficult to determine where they should be...must rely on user
                            if ((vDateType == 1 || vDateType == 3) && padMonth && padDay) {  // mm/dd/yyyy and dd/mm/yyyy
								if (vDateValue.length == 2) 
									vDateName.value = vDateValue+strSeperator;
								if (vDateValue.length == 5) 
									vDateName.value = vDateValue+strSeperator;
							} 
                            if (vDateType == 2 && padMonth && padDay) {  // yyyy/dd/mm 
								if (vDateValue.length == 4) 
									vDateName.value = vDateValue+strSeperator;
								if (vDateValue.length == 7) 
									vDateName.value = vDateValue+strSeperator;
                            }
							return true;
                        }
                    }				
					if (vDateValue.length == 10 && dateCheck) {
						if (!dateValid(vDateName)) {
							// Un-comment the next line of code for debugging the dateValid() function error messages
							//alert(err);  
							alert("Invalid Date\nPlease Re-Enter (8)");
							vDateName.focus();
							vDateName.select();
                            return false;
						}
                    }
					return false;
                } else { 
					// If an invalid character was entered in the middle of the string
					// instead of the last character, returning the string minus the last
					// character doesn't make any sense.  Will wipe the bad character instead.

					// If the value is not in the string return the string minus the last
					// key entered.
					if (isNav4) {
						vDateName.value = "";
						vDateName.focus();
						vDateName.select();
						return false;
                    } else {
						var badIndex = vDateName.value.toUpperCase().indexOf(String.fromCharCode(whichCode));
						if (badIndex != -1 ) 
							vDateName.value = vDateName.value.substr(0, badIndex) + 
								 	 vDateName.value.substr(badIndex + 1, (vDateValue.length-1));
						return false;
					}
                }
		   } // end which code <> 8 or 0
		}
        
        //Expecting date in mm/dd/yyyy format but can handle different separators and month in alpha (i.e. FEB) format
		function dateValid(objName) {
			var strDate;
			var strDateArray;
			var strDay;
			var strMonth;
			var strYear;
			var intday;
			var intMonth;
			var intYear;
			var booFound = false;
			var datefield = objName;
			var strSeparatorArray = new Array("-"," ","/",".");
			var intElementNr;
			var strMonthArray = new Array(12);
			strMonthArray[0] = "Jan";
			strMonthArray[1] = "Feb";
			strMonthArray[2] = "Mar";
			strMonthArray[3] = "Apr";
			strMonthArray[4] = "May";
			strMonthArray[5] = "Jun";
			strMonthArray[6] = "Jul";
			strMonthArray[7] = "Aug";
			strMonthArray[8] = "Sep";
			strMonthArray[9] = "Oct";
			strMonthArray[10] = "Nov";
			strMonthArray[11] = "Dec";

			strDate = objName;
			if (strDate.length < 1) 
				return true;
            
 			strDateArray = strDate.split(strSeperator);
			if (strDateArray.length != 3) {
				err = 1;
            } else {
				strDay = strDateArray[1];
				strMonth = strDateArray[0];
				strYear = strDateArray[2];
            }
			
            // no date separator so assuming date value provide in mmddyyyy format
            if (err == 1 && strDate.length==6) {
                err = 0;
        		strMonth = strDate.substr(0,2);
				strDay = strDate.substr(2,2);
				strYear = strDate.substr(4,4);
            } 
            
            if (err == 1)
                return false;

			//Adjustment for short years entered
			if (strYear.length == 2 && parseInt(strYear,10) > 50)
                strYear = '19' + strYear;
            else
				strYear = '20' + strYear;
                
			intday = parseInt(strDay, 10);
			if (isNaN(intday)) {
				err = 2;
				return false;
			}
            
            // handle month if its in FEB format
			intMonth = parseInt(strMonth, 10);
			if (isNaN(intMonth)) {
				for (i = 0;i<12;i++) {
					if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
						intMonth = i+1;
						strMonth = strMonthArray[i];
						i = 12;
					}
                }
				if (isNaN(intMonth)) {
					err = 3;
					return false;
				}
            }
            
			intYear = parseInt(strYear, 10);
			if (isNaN(intYear)) {
				err = 4;
				return false;
            }

            //Check validity of month
			if (intMonth>12 || intMonth<1) {
				err = 5;
				return false;
            }
            
            //check validity of day
			if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && 
                (intday > 31 || intday < 1)) {
				err = 6;
				return false;
            }
			if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
				err = 7;
				return false;
			}
			if (intMonth == 2) {
				if (intday < 1) {
					err = 8;
					return false;
				}
				if (LeapYear(intYear) == true) {
					if (intday > 29) {
						err = 9;
						return false;
					}
				} else {
					if (intday > 28) {
						err = 10;
						return false;
					}
				}
			}
			return true;
		}
		
		function LeapYear(intYear) {
			if (intYear % 100 == 0) {
				if (intYear % 400 == 0) { 
					return true; 
					}
				}
			else {
				if ((intYear % 4) == 0) { 
					return true; 
					}
				}
			return false;
		}