function clearDatePicker(strForm, strDatePickName) {
	eval(strForm + '[\'day' + strDatePickName + '\'].value = \'(day)\';');
	eval(strForm + '.month' + strDatePickName + '.selectedIndex = 0;');
	eval(strForm + '.year' + strDatePickName + '.value = \'(year)\';');
}

function clearDatePicker_preset(strForm, strDatePickName, sDay,sMonth, sYear ) {
	eval(strForm + '[\'day' + strDatePickName + '\'].value = \'' + sDay + '\';');
	
	eval(strForm + '.month' + strDatePickName + '.selectedIndex = 0;');
	eval(strForm + '[\'month' + strDatePickName + '\'].value = \''+ sMonth + '\';');
	
	eval(strForm + '.year' + strDatePickName + '.value = \'(year)\';');
	eval(strForm + '.year' + strDatePickName + '.value = \'' + sYear +'\';');
}


function clearDatePicker1(strForm, strDatePickName,sMonth, sYear) {
	eval(strForm + '[\'day' + strDatePickName + '\'].selectedIndex = 0;');
	eval(strForm + '[\'month' + strDatePickName + '\'].value = \''+ sMonth + '\';');
//	eval(strForm + '.month' + strDatePickName + '.selectedIndex = 0;');
	eval(strForm + '.Year' + strDatePickName + '.value = \'' + sYear +'\';');
}

function checkDTPonFocus (objDateTime)	{
	if (isNaN(objDateTime.value))	{
		objDateTime.value = "";
		objDateTime.select();
	}
}


function checkDTPonBlur (objDateTime, strDefault, intMinVal, intMaxVal)	{
	if (objDateTime.value.length == 0)	{
		objDateTime.value = strDefault;
	}
}


function checkMaxLength (objDateTime, intMaxLen)	{
	if (objDateTime.value.length > intMaxLen)	{
		objDateTime.value = objDateTime.value.slice(0, intMaxLen);
	}
}


function getFullDateValueNoValidate (strID, objToSetValue) {
	var objArray = new Array (null, null, null);
	var dayVal;
	var monthVal;
	
	// clear the value of the object (probably hidden input)
	objToSetValue.value = "";
	
	if (initDateObjs (objArray, strID))	{
		objToSetValue.value = objArray[2].value + "-" + objArray[1].value + "-" + objArray[0].value;
	}
}


function getFullDateValue (strID, objToSetValue, blnOptional, strErrorMsg)	{
	var objArray = new Array (null, null, null);
	var dayVal;
	var monthVal;
	
	// clear the value of the object (probably hidden input)
	objToSetValue.value = "";
	
	if (initDateObjs (objArray, strID)) {
		if (!isNaN(objArray[0].value)) {
			//	range check
			if (!parseInt(objArray[0].value, 10) > 0 && parseInt(objArray[0].value, 10) <= 31) {
				return (giveFocus (objArray[0], "The valid range for a day value is from 1 to 31."));
			}
		}
		else if (objArray[0].value != "(day)") {
			return (giveFocus (objArray[0], "Illegal value has been entered, please rectify..."));
		}

		if (!isNaN(objArray[2].value)) {
			if (objArray[2].value.length != 4) {
				return (giveFocus (objArray[2], "The year must be 4 digits long."));
			}
		}
		else if (objArray[2].value != "(year)") {
			return (giveFocus (objArray[2], "Illegal value has been entered, please rectify..."));
		}
	}
	else {
		alert("The page did not load up properly, please refresh the page.");
		return false;
	}
	
	// valid values have been entered.
	if (!isNaN(objArray[0].value) && (objArray[1].options[objArray[1].selectedIndex].value > 0) && !isNaN(objArray[2].value)) {
		switch (parseInt(objArray[1].options[objArray[1].selectedIndex].value, 10)) {
			case 1: case 3: case 5: case 7: case 8: case 10: case 12:
				if (objArray[0].value > 31)
					return (checkNumOfDays(objArray[0]));
				break;
				
			case 4: case 6: case 9: case 11:
				if (objArray[0].value > 30)
					return (checkNumOfDays(objArray[0]));
				break;
			
			case 2:
				// leap year check
				if ((objArray[2].value%4) == 0 || ((objArray[2].value%100) == 0 && (objArray[2].value%400) == 0)) {
					if (objArray[0].value > 29)
						return (checkNumOfDays(objArray[0]));
				}
				else {
					if (objArray[0].value > 28)
						return (checkNumOfDays(objArray[0]));
				}
				break;
				
			default:
				return false;
				break;
		}

		if (objArray[0].value.length == 1)
			dayVal = '0' + objArray[0].value;	// make two digit day value
		else
			dayVal = objArray[0].value;
		
		if (objArray[1].options[objArray[1].selectedIndex].value.length == 1)
			monthVal = '0' + objArray[1].options[objArray[1].selectedIndex].value;	// make two digit month value
		else
			monthVal = objArray[1].options[objArray[1].selectedIndex].value;
		
//		objToSetValue.value = dayVal + "/" + monthVal + "/" + objArray[2].value;
		// international date format
		objToSetValue.value = objArray[2].value + "-" + monthVal + "-" + dayVal;

		return true;
	}
	else	{
		// partial complete test
		if (!isNaN(objArray[0].value) || (objArray[1].options[objArray[1].selectedIndex].value > 0) || !isNaN(objArray[2].value))	{
			if (isNaN(objArray[0].value))	{
				return partialComplete(objArray[0]);
			}
			else if (objArray[1].options[objArray[1].selectedIndex].value == 0)	{
				return partialComplete(objArray[1]);
			}
			else if (isNaN(objArray[2].value))	{
				return partialComplete(objArray[2]);
			}
		}
		else	{
			if (!blnOptional)	{
				alert(strErrorMsg);
				return false;
			}
			else	{
				return true;
			}
		}
	}
	
	return false;
}


function getFullTimeValue(strID, objToSetValue, blnOptional, strErrorMsg)	{
	var objArray = new Array (null, null, null);
	var strOut = "";

	// clear the value of the object (probably hidden input)
	objToSetValue.value = "";
	if (initTimeObjs(objArray, strID))	{

		if (!isNaN(objArray[0].value))	{
			if (objArray[0].value <= 12 && objArray[0].value > 0)	{
				// am pm thing
				if (objArray[2].options[objArray[2].selectedIndex].value == 1)	{	// pm
					if (objArray[0].value != 12)
						strOut = parseInt(objArray[0].value, 10) + 12;	// make 24 hour time
					else
						strOut = "12";
				}
				else	{
					if (objArray[0].value == 12)
						strOut = "0";
					else
						strOut = objArray[0].value;
				}
			}
			else	{
				return (giveFocus (objArray[0], "The valid range for a hour value is from 1 to 12."));
			}
		}
		else if (objArray[0].value != "(hh)")	{
			return (giveFocus (objArray[0], "Illegal value has been entered, please rectify..."));
		}

		if (!isNaN(objArray[1].value))	{
			if (parseInt(objArray[1].value, 10) < 60 && parseInt(objArray[1].value, 10) >= 0)	{
				strOut = strOut + ":" + objArray[1].value;
			}
			else	{
				return (giveFocus (objArray[1], "The valid range for a minute value is from 0 to 59."));
			}
		}
		else if (objArray[1].value != "(mm)")	{
			return (giveFocus (objArray[1], "Illegal value has been entered, please rectify..."));
		}
	}
	else	{
		alert("The page did not load up properly, please refresh the page.");
		return false;
	}
	
	if (!isNaN(objArray[0].value) && !isNaN(objArray[1].value))	{
		objToSetValue.value = strOut;
		return true;
	}
	else	{
	// valid values have been entered.
		if (!isNaN(objArray[0].value) || !isNaN(objArray[1].value))	{
			if (isNaN(objArray[0].value))	{
				return partialComplete(objArray[0]);
			}
			else if (isNaN(objArray[1].value))	{
				return partialComplete(objArray[1]);
			}
		
		}
		else	{
			if (!blnOptional)	{
				alert(strErrorMsg);
				return false;
			}
			else	{
				return true;
			}
		}
	}
	
	return false;
}

function initDateObjs (objArr, strID)	{
	var blnOk = false;
	//var objDoc = (document.all) ? document.all : (document.getElementById) ? document.getElementById : null;
	
	
	if (document.getElementById) {
		objArr[0] = document.getElementById("idDay" + strID);
		objArr[1] = document.getElementById("idMonth" + strID);
		objArr[2] = document.getElementById("idYear" + strID);
		if (objArr[0] != null && objArr[1] != null && objArr[2] != null)
			blnOk = true;
	}
	else if (document.all)	{
		if ((objArr[0] = document.all("idDay" + strID)))	{
			if ((objArr[1] = document.all("idMonth" + strID)))	{
				if ((objArr[2] = document.all("idYear" + strID)))	{
					blnOk = true;
				}
			}
		}
	}
	else {
		if ((objArr[0] = document.forms[0]["day" + strID])) {
			if ((objArr[1] = document.forms[0]["month" + strID])) {
				if ((objArr[2] = document.forms[0]["year" + strID]))	{
					blnOk = true;
				}
			}
		}
	}

	return blnOk;
}

function initTimeObjs (objArr, strID)	{
	var blnOk = false;

	if (document.all)	{
		if ((objArr[0] = document.all("idHour" + strID)))	{
			if ((objArr[1] = document.all("idMin" + strID)))	{
				if ((objArr[2] = document.all("idAmPm" + strID)))	{
					blnOk = true;
				}
			}
		}
	}
	else if (document.getElementById)	{
		if ((objArr[0] = document.getElementById("idHour" + strID)))	{
			if ((objArr[1] = document.getElementById("idMin" + strID)))	{
				if ((objArr[2] = document.getElementById("idAmPm" + strID)))	{
					blnOk = true;
				}
			}
		}

	}
	else	{
		if ((objArr[0] = document.forms[0]["hour" + strID])) {
			if ((objArr[1] = document.forms[0]["min" + strID])) {
				if ((objArr[2] = document.forms[0]["AmPm" + strID]))	{
					blnOk = true;
				}
			}
		}
	}
	
	return blnOk;
}

function giveFocus(objRef, strMsg)	{
	alert(strMsg);
	objRef.focus();
	objRef.select();
	
	return false;
}

function checkNumOfDays(objDay)	{
	alert("The day value exceeds its upper limit.");
	objDay.focus();
	objDay.select();
	
	return false;
}

function partialComplete (objRef)	{
	alert("You've partially entered a date/time value. Please complete.");
	objRef.focus();
	
	if (objRef.type == "textbox")	{
		objRef.select();
	}
	
	return false;
}

function SetInputAvailability (objInput, blnValue)	{
	objInput.disabled = !blnValue;
}

function SetDTPAvailability (strID, blnValueToSet, blnTimeField)	{
	var objDateArr = new Array (null, null, null);
	var objTimeArr;
	var i = 0;
	
	if (initDateObjs (objDateArr, strID))	{
		for (i = 0; i < objDateArr.length; i++)
			SetInputAvailability (objDateArr[i], blnValueToSet);
	}
	else	{
		alert("Cannot find one or more date objects.\nThis page didn\'t seem to load up properly.");
	}
	
	if (blnTimeField)	{
		objTimeArr = new Array (null, null, null);

		if (initTimeObjs (objTimeArr, strID))	{
			for (i = 0; i < objTimeArr.length; i++)
				SetInputAvailability (objTimeArr[i], blnValueToSet);
		}
		else	{
			alert("Cannot find one or more time objects.\nThis page didn\'t seem to load up properly.");
		}
	}
	
	return true;
}