function checkNumeric(type,objName,minval, maxval,comma,period,hyphen)
{

	if (type == "string") { return; } 



	var numberfield = objName;
	
	if (type == "date") {
	 
	 if (chkDate(objName,minval,59) == false)
	{
	     setTimeout(function(){if(numberfield)numberfield.focus();numberfield.select();},100);
		numberfield.select();
		numberfield.focus();
		return false;
	
	} else { return true; }
	
	
	}
	
	if (type == "time") { 
	
	if (chkTime(objName,0,maxval) == false)
	{
		setTimeout(function(){if(numberfield)numberfield.focus();numberfield.select();},100);
		numberfield.select();
		numberfield.focus();
		return false;
	
	} else { return true; }
	
	}
	if (chkNumeric(objName,minval,maxval,comma,period,hyphen) == false)
	{
		
		setTimeout(function(){if(numberfield)numberfield.focus();numberfield.select();},100);
		numberfield.select();
		numberfield.focus();
		return false;
	}
	else
	{
		return true;
	}
}

function chkNumeric(objName,minval,maxval,comma,period,hyphen)
{
// only allow 0-9 be entered, plus any values passed
// (can be in any order, and don't have to be comma, period, or hyphen)
// if all numbers allow commas, periods, hyphens or whatever,
// just hard code it here and take out the passed parameters
var checkOK = "0123456789" + period ;
var checkStr = objName;
var allValid = true;
var decPoints = 0;
var allNum = "";
var lastch = 0;

for (i = 0;  i < checkStr.value.length;  i++)
{
ch = checkStr.value.charAt(i);
if (ch == period) { 
  if(lastch == period) {allValid = false;break;}
  lastch = ch;
} else {
	lastch = 0;
}
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;
}
if (!allValid)
{	
alertsay = "Please enter only these values \""
alertsay = alertsay + checkOK + "\" in the \"" + checkStr.name + "\" field."
alert(alertsay);
return (false);
}

// set the minimum and maximum
var chkVal = allNum;
var prsVal = parseInt(allNum);
if (chkVal != "" && !(prsVal >= minval && prsVal <= maxval))
{
alertsay = "Please enter a value greater than or "
alertsay = alertsay + "equal to \"" + minval + "\" and less than or "
alertsay = alertsay + "equal to \"" + maxval + "\" in the \"" + checkStr.name + "\" field."
alert(alertsay);
return (false);
}
}


function chkTime(objName,minval,maxval,comma,period,hyphen)
{
// only allow 0-9 be entered, plus :
// (can be in any order, and don't have to be comma, period, or hyphen)
// if all numbers allow commas, periods, hyphens or whatever,
// just hard code it here and take out the passed parameters
var checkOK = "0123456789" + ":";
var checkStr = objName;
var allValid = true;
var formatValid = false;
var decPoints = 0;
var allNum = "";

for (i = 0;  i < checkStr.value.length;  i++)
{
ch = checkStr.value.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;

if (ch == ':') formatValid = true;

}
if (!allValid)
{	
alertsay = "Please enter only these values \""
alertsay = alertsay + checkOK + "\" in the \"" + checkStr.name + "\" field."
alert(alertsay);
return (false);
}

// set the minimum and maximum
var chkVal = allNum;
var prsVal = parseInt(allNum);
if (chkVal != "" && !(prsVal >= minval && prsVal <= maxval))
{
alertsay = "Please enter a value greater than or "
alertsay = alertsay + "equal to \"" + minval + "\" and less than or "
alertsay = alertsay + "equal to \"" + maxval + "\" in the \"" + checkStr.name + "\" field."
alert(alertsay);
return (false);
}


 if (!formatValid && chkVal != "") {
 
   alert("Duration format must be HH:MM");
   return (false);	
 }



}


function chkDate(objName,minval,maxval)
{
// only allow 0-9 be entered, plus any values passed
// (can be in any order, and don't have to be comma, period, or hyphen)
// if all numbers allow commas, periods, hyphens or whatever,
// just hard code it here and take out the passed parameters
var checkOK = "0123456789" + "/";
var checkStr = objName;
var allValid = true;
var decPoints = 0;
var allNum = "";

for (i = 0;  i < checkStr.value.length;  i++)
{
ch = checkStr.value.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != "/")
allNum += ch;
}


if (!allValid)
{	
alertsay = "Please enter valid date format MM/DD/YYYY"
alertsay = alertsay + checkOK + "\" in the \"" + checkStr.name + "\" field."
alert(alertsay);
return (false);
}


var currentYear = new Date();
var year = allNum.substr(allNum.length-4);
if (year < currentYear.getYear()-1) {alert("Year must be greater than "+(currentYear.getYear()-2));return false;}

if (currentYear.getYear() - year < 0) {alert("4 Digit year required"); return false;};


}

function textLimit(field, maxlen) {
  if (field.value.length > maxlen + 1)
        alert('Input cannot exceed '+maxlen+' characters...');
  if (field.value.length > maxlen)
     field.value = field.value.substring(0, maxlen);
}


/**
 * 
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

function ValidateDate(date){
	var dt=date
	
	if (isDate(dt.value)==false){
		
		//setTimeout("date.focus();date.select();",100);
        setTimeout(function(){if(date)date.focus();date.select();},100);
		dt.focus()
		dt.select()
		
		return false
	}
    return true
 }