/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// 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 checkDate(objName){
	if(objName.value == ""){
		return true;
	}
	if(!isDate(objName.value)){
		objName.value = "";
		objName.focus();
		return false;
	}else{
		return true;
	}
}

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 ValidateForm(){
	var dt=document.frmSample.txtDate
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }

function compareDate(a,b) {
	var aDate = new Date(a);
	var bDate = new Date(b);
	if(aDate.getTime() == bDate.getTime()) return 0;
	return (aDate.getTime() < bDate.getTime() ? -1 : 1);
}

function roundDouble500(objName1, objName2){
  if(validateDouble(objName1)){
      var strValue = objName1.value;
      var reminder = eval(strValue)%500;
      if(reminder == 0){
        objName2.value = strValue
      }else{
        objName2.value = ((eval(strValue-reminder)/500) + 1)*500;
      }
  }
}

function validateDouble_gt0(objName){
  validateDouble(objName);
  var checkOK = "0";
  allValid = false;
  var checkStr = objName;
  for (i = 0; i < checkStr.value.length; i++) {
    ch = checkStr.value.charAt(i);
    if (ch != checkOK.charAt(0)){
      allValid = true;
    }
  }
  if(!allValid){
    objName.value = "";
  }
}

function validateDouble(objName){
	var checkOK = "0123456789.";
	allValid = true;
	var checkStr = objName;
	if(checkStr.value==""){
		objName.value = 0;
		return true;
	}
	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 (!allValid) {
		alert(errdbl);
		objName.select();
		objName.focus();
		return false;
	}else{
		return true;
	}

}

function validateInteger(objName){
	var checkOK = "0123456789";
	allValid = true;
	var checkStr = objName;
	if(checkStr.value==""){
		objName.value = 0;
		return true;
	}
	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 (!allValid) {
		alert(errint);
		objName.select();
		objName.focus();
		return false;
	}else{
		return true;
	}

}

function roundDouble(dblDouble){
	strDouble = new String(dblDouble);
	if(strDouble.indexOf(".") > 0){
		return SigFig(strDouble, strDouble.indexOf(".")+2);
	}else{
		return strDouble;
	}
}
function formatNumber(obj) {


  k = Math.floor(obj.value.length/3);
  r = obj.value.length - (k * 3);
  num1='';
  if (k > 0) {
     if (r > 0) num1 = obj.value.substring(0,r)+',';
     for (i=1; i < k; i++)
       {
        num1 = num1 + obj.value.substring(r,r+3)+',';
        r = r +3;
       }
    num1 = num1 + obj.value.substring(r);
   }
   else num1=obj.value;

 obj.value= num1;

}

function formatNumberDec(obj){

  j = obj.value.indexOf(".");
  if (j == -1) j= obj.value.length;

  k = Math.floor(j/3);

  r = j - k * 3;

  num1='';
  if (k > 0) {
     if (r > 0) num1 = obj.value.substring(0,r)+',';
     for (i=1; i < k; i++)
       {
        num1 = num1 + obj.value.substring(r,r+3)+',';
        r = r +3;
       }
  num1 = num1 + obj.value.substring(r);
  }
  else num1=obj.value;

 obj.value= num1;

}

function removecomma(obj){
 num2 ='';
  for (i=0; i < obj.value.length; i++)
    {
     if (obj.value.substring(i,i+1) != ',')
        num2 = num2 + obj.value.substring(i,i+1);
    }
  obj.value=num2;
}

function nocommaformat(obj){
 num2 ='';
  for (i=0; i < obj.value.length; i++)
    {
     if (obj.value.substring(i,i+1) != ',')
        num2 = num2 + obj.value.substring(i,i+1);
    }
  return num2;
}

function SigFig(X, N) {
	 var p = Math.pow(10, N-Math.ceil(Math.log(Math.abs(X))/Math.LN10))
	 if (!isFinite(p))
		 return X
	 return Math.round(X*p)/p
 }