function checkdate(objName) {
var datefield = objName;
if (chkdate(objName) == false) {
datefield.select();
alert("That date is invalid.  Please try again.");
datefield.focus();
return false;
}
else {
return true;
   }
}
function chkdate(objName) {
//var strDatestyle = "US"; //United States date style
var strDatestyle = "EU";  //European date style
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 err = 0;
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 = datefield.value;
if (strDate.length < 1) {
return true;
}

for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
	if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
		strDateArray = strDate.split(strSeparatorArray[intElementNr]);
		if (strDateArray.length == 3 || strDateArray.length == 2) {
			strDay = strDateArray[0];
			strMonth = strDateArray[1];
			if ( strDateArray.length == 3 )
				strYear = strDateArray[2];
			else
				strYear = '2006';
		}
		else {
				err = 1;
				return false;
		}
		booFound = true;
   }
}

if (booFound == false) {
if (strDate.length>5) {
strDay = strDate.substr(0, 2);
strMonth = strDate.substr(2, 2);
strYear = strDate.substr(4);
   }
else {
err = 1;
return false;
}
	
}
if (strYear.length == 2) {
strYear = '19' + strYear;
}
if ( strYear.length == 1) {
	strYear = '200' + strYear;
	}
	
// US style
if (strDatestyle == "US") {
strTemp = strDay;
strDay = strMonth;
strMonth = strTemp;
}
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
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;
}
if (intMonth>12 || intMonth<1) {
err = 5;
return false;
}
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;
}
}
}
if (strDatestyle == "US") {
datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
}
else {
datefield.value = intday + "-" + strMonthArray[intMonth-1] + "-" + strYear;
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}
function doDateCheck(from, to) {
if (Date.parse(from.value) <= Date.parse(to.value)) {
alert("The dates are valid.");
}
else {
if (from.value == "" || to.value == "") 
alert("Both dates must be entered.");
else 
alert("To date must occur after the from date.");
   }
}


function checkmoney(objName) {
var moneyfield = objName;
if (chkmoney(objName) == false) {
moneyfield.select();
alert("That amount is invalid.  Please try again.");
moneyfield.focus();
return false;
}
else {
return true;
   }
}

function chkmoney(objName) {
	var fld = objName;
	var strMoney = fld.value;
	var strParts = new Array(2);
	
	if ( strMoney.length < 1 )
		return true;
	
	strMoney = strMoney.replace('$', '');
	strMoney = strMoney.replace(',', '');
	
	if ( strMoney.indexOf('.') != -1 )
	{
		strParts = strMoney.split('.');
		if ( strParts.length > 2 )
			return false;
		if ( strParts[1].length > 2 )
			strParts[1] = strParts[1].substr(0, 2);
		else if ( strParts[1].length == 1 )
			strParts[1] = strParts[1] + '0';
		else if ( strParts[1].length == 0 )
			strParts[1] = '00';
	}
	else
	{
		strParts[0] = strMoney;
		strParts[1] = '00';
	}
	for ( var i = 0; i < 2; i++ )
	{
		var part = strParts[i];
		for ( var j=0; j<part.length; j++ )
		{
			if ( isNaN(parseInt(part.substr(j,1))) )
				return false;
		}
	}
	strMoney = strParts.join('.');

	objName.value = strMoney;
	return true;
}


function checkint(objName) {
var intfield = objName;
if (chkint(objName) == false) {
intfield.select();
alert("That number is invalid.  Please try again.");
intfield.focus();
return false;
}
else {
return true;
   }
}

function chkint(objName) {
	var fld = objName;
	var strInt = fld.value;
	if ( strInt.length < 1 )
		return true;
	for ( var j=0; j<strInt.length; j++ )
	{
		if ( isNaN(parseInt(strInt.substr(j,1))) )
			return false;
	}
	return true;
}

function checknum(objName) {
var numfield = objName;
if (chknum(objName) == false) {
numfield.select();
alert("That number is invalid.  Please try again.");
numfield.focus();
return false;
}
else {
return true;
   }
}

function chknum(objName) {
	var fld = objName;
	var strInt = fld.value;
	if ( strInt.length < 1 )
		return true;
	
	for ( var j=0; j<strInt.length; j++ )
	{
		if ( strInt.substr(j,1) != "." && isNaN(parseInt(strInt.substr(j,1))) )
			return false;
	}
	return true;
}



//special func for assets

function checkusage(objName) {
var intfield = objName;
if (chkint(objName) == false) {
intfield.select();
alert("That number is invalid.  Please try again.");
intfield.focus();
return false;
}
else if ( chkusage(objName) == false ) {
intfield.select();
alert("You have allocated more than 100% of this asset\'s use.  Please try again.");
intfield.focus();
}
else {
return true;
   }
}

function chkusage(objName){
	var fld = objName;
	var strFld = fld.value;
	if ( strFld == '0' )
		return true;
		
	var name = objName.name;
	var assetID = name.substr(name.indexOf('_') + 1);

	//get stored total use, plus this use
	var totalUse = eval('document.forms[0].AccountedUse_' + assetID + '.value');
	var thisUse = eval('document.forms[0].ThisUse_' + assetID + '.value');
	var newTotal = totalUse - thisUse;

	var test = Number(newTotal) + Number(strFld);
	if ( test > 100 )
		return false;
	
	return true;	

}