/*
	openCalendar
*/
var FieldName;
function openCalendar(FN){
	FieldName = FN;
	var pathname = (window.location.pathname.toLowerCase());
	var stFeature = 'width=250,height=270';
	var toppx = (screen.height-270)/2;
	var leftpx = (screen.width-250)/2;
	stFeature += ',top='+toppx.toString()+'px,left='+leftpx.toString()+'px';
	window.open('cal.htm','Calendar',stFeature);
}

function round_currency(a)
{
  
  var b = Math.abs(a);
  
  b = Math.round(b * 10000000.0) / 100000.0;
  
  b = Math.round(b) / 100.0;
  
  b = b * (a >= 0.0 ? 1.0 : -1.0);
  if( b == 0.0 )
	return 0.0;
  return b;
}

function pad_to_atleast_two_decimal_places(a)
{
  var s;
    if(a == null)
    {
       s = "";
    }
  else
  {
    s = a.toString();
    var n = s.indexOf(".");
    if(n == -1)
    {
      //s = s + ".00";
    }
    else if(n == s.length-1)
    {
      //s = s + "00";
      s = s;
    }
    else if(n == s.length-2)
    {
      s = s + "0";
    }
    if (n == 0)
    {
      s = "0" + s;
    }
  }
  return s;
}

function format_currency(a, bDoNotRound)
{
  
  var returnMe;
  if(isNaN(a))
  {
    return "";
  }
  else if( !(bDoNotRound == true))  
  {
        returnMe = round_currency(a);
  }
  else
    returnMe = a;
  returnMe = pad_to_atleast_two_decimal_places(returnMe);
  return returnMe;
}

function format_currency(a, bDoNotRound)
{
  
  var returnMe;
  if(isNaN(a))
  {
    return "";
  }
  else if( !(bDoNotRound == true))  
  {
        returnMe = round_currency(a);
  }
  else
    returnMe = a;
  returnMe = pad_to_atleast_two_decimal_places(returnMe);
  return returnMe;
}


function onlydigits(str){ 
	var re = new RegExp("([0-9]+)"); 
	return (re.exec(str)!=null && RegExp.$1==str); 
}

function FomatNumber(txtName){
	var sumstr = document.all.item(txtName).value;
	sumstr = format_currency(parseFloat(sumstr));
	sumstr = sumstr.substring(0,10);
	document.all.item(txtName).value = sumstr;
}


// Convert Number to format "###.###"
function ConvertToVNNumber(num){
	num = num.toString().replace(/\$|\./g,'');
	num = String(num).substring(0,10);	
	num = parseFloat(num);
	if(isNaN(num))num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	//cents = num%100;
	//if(cents<10)
	//cents = "0" + cents;
	
	num = Math.floor(num/100).toString();
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++){
		num = num.substring(0,num.length-(4*i+3))+'.'+ num.substring(num.length-(4*i+3));
	}	
	return ((sign)?'':'-') + num;
}

// Convert Number to format "###,###"
function ConvertToSysNumber(num){
	num = num.toString().replace(/\$|\./g,'');
	return parseFloat(num);
}

// Convert Number to format "###.###,###"
function ConvertToVNCurrency(num){
	var numInteger;
	var numDecimal;	
	num = num.toString().replace(/\$|\,/g,'');
	num = num.toString().replace(/\$|\./g,',');
	return FormatVNCurrency(num)
}

function FormatVNCurrency(num){
	var numInteger;
	var numDecimal;
	num = num.toString().replace(/\$|\./g,'');
	num = num.toString().replace(/\$|\,/g,'.');
	//num = String(num).substring(0,10);	
	num = parseFloat(num);
	if(isNaN(num))num = "0";
	sign = (num == (num = Math.abs(num)));
	
	if (num.toString().indexOf('.')>0){
		var array = num.toString().split(".");
        numInteger = array[0];
        numDecimal = array[1];	
	}else{
        numInteger = num;
        numDecimal = '';	
	}      
	numInteger = parseInt(numInteger);
	
	numInteger = Math.floor(numInteger*100+0.50000000001);
	numInteger = Math.floor(numInteger/100).toString();
	for (var i = 0; i < Math.floor((numInteger.length-(1+i))/3); i++){
		numInteger = numInteger.substring(0,numInteger.length-(4*i+3))+'.'+ numInteger.substring(numInteger.length-(4*i+3));
	}
	if (numDecimal != ''){
		return (numInteger + ',' + numDecimal);
	
	}else{
	
		return (numInteger);
	}

}


// Convert Number to format "###,###"
function ConvertToSysCurrency(num){
	num = num.toString().replace(/\$|\./g,'');
	num = num.toString().replace(/\$|\,/g,'.');
	return parseFloat(num);
}

function FormatNumber(txtName){
	var num = document.all.item(txtName).value;	
	document.all.item(txtName).value = ConvertToVNNumber(num);	
}

function FormatCurrency(txtName){
	var num = document.all.item(txtName).value;	
	document.all.item(txtName).value = FormatVNCurrency(num);	
}


function CheckTypeOfByte(txtFieldName){
	var fValue = 1;
	var strValue = document.all.item(txtFieldName).value;
	strValue = format_currency(parseFloat(strValue));
	strValue = strValue.substring(0,10);
	if ((strValue.length > 0)&&(parseFloat(strValue) > 0))
		document.all.item(txtFieldName).value = strValue
	else{
		document.all.item(txtFieldName).value = "";
		alert("Giá trị phải là số dương lớn hơn 0");
	}
}

function NotEmpty(txtName){
	var sumstr = document.all.item(txtName).value;
	if (sumstr == ''){
		alert('Chưa nhập dữ liệu');
		document.all.item(txtName).focus();
		return false;
	}else{
		document.all.item(txtName).value = sumstr;	
		return true;
	}	
}

function validate_field(field,type,doalert,mandatory)
{
	type = type.toLowerCase();
    if (field.value == null || field.value.length == 0){
		if (mandatory == true){
		    if (doalert) alert("Chưa nhập dữ liệu ");
		    field.focus();
		    //field.select();
			//window.isvalid = false;
			return false;
		}
		else{
		    //window.isvalid = true;
		    return true;
		}
    }
    var validflag = true;
    if (type == "date")
    {
        validflag = true;
        var m=0,d=0,y=0, val=field.value;
        var fmterr;
        var year="";

        if (val.indexOf("/") != -1) {
                var c = val.split("/");
                if(onlydigits(c[0])) d = parseInt(c[0],10);
                if(onlydigits(c[1])) m = parseInt(c[1],10);
                if(onlydigits(c[2])) y = parseInt(c[2],10);
                year=c[2];
        }
        else{
                //var l = val.length, str;
                //str = val.substr(0,2-l%2); if(onlydigits(str)) m = parseInt(str,10);
                //str = val.substr(2-l%2,2); if(onlydigits(str)) d = parseInt(str,10);
                //str = val.substr(4-l%2);   if(onlydigits(str)) y = parseInt(str,10);
                //year=str;
        }
        fmterr = "Ngày/Tháng/Năm";
        if(m==0 || d==0)
        {
            if (doalert) alert("Ngày không hợp lệ, phải là : "+fmterr+"");
            field.value = "";
            field.focus();
		    //field.select();

            validflag = false;

        }
        else
        {
			if (y==0 && !onlydigits(year)) y = (new Date()).getYear();  
            if(m<1) m=1; else if(m>12) m=12;
            
            if(d<1) d=1; else if(d>31) d=31;
            
            switch (m){
				case 1 : 
				case 3 :
				case 5 :
				case 7 :
				case 8 :
				case 10 :
				case 12 :
				{
					if(d>31) d=31;
					break;
				}
				case 6 :
				case 9 :
				case 11 : 
				case 4 : {
					if(d>30) d=30;
					break;
				}
				case 2 : {
					if(d>28) d=28;
					break;
				}
			}
			
            if(y<100) y+=((y>=70)?1900:2000);
            if(y<1000) y*=10;
            if (y > 9999) y = (new Date()).getYear();
            if(d <= 9){ d = '0'+ d;}
            if(m <= 9){m = '0'+ m;}        
            field.value = d +'/'+ m + '/'+ y ;//getdatestring(new Date(y,m-1,d));
        }
    }
    else if (type =="number"){
			var sumstr = field.value;
			sumstr = format_currency(parseFloat(sumstr));
			field.value = sumstr;
			if (field.value == null || field.value.length == 0){
				if (mandatory == true){
					if (doalert) alert("Chưa nhập dữ liệu ");
					field.focus();
					return false;
				}
				else{
					return true;
				}
			}
			
    }    
        
    else if (type =="currency"){
        var val = field.value.replace(/\$/g,"");
        val = field.value.replace(/\ /g,"");
				val = val.replace(/,/g,"");
        val = val.toLowerCase();
        if(val.charAt(0) == '=') val = val.substr(1);
        if (val.substr(1).search(/[\+\-\*\/]/g) != -1){
            var c = val.charAt(0);
            if(val.charAt(0) >='a' && val.charAt(0) <='z')
            {
                //value = "error";
            }
            else
            {
		    //    try {
            //      val = eval(val);
			//	} catch (e) { val = "error"; }
                //autoplace = false;
            }
        }
        numval = parseFloat(val);
        if (isNaN(numval) || Math.abs(numval)>=1.0e+12){
            if (doalert) alert("Giá trị không hợp lệ, phải nhỏ hơn 999.999.999.999,99");
            validflag = false;

        }
        else {
			//if(autoplace && val.indexOf(".") == -1) numval/=100;
			field.value = format_currency(numval);
			validflag = true;
        }
    }
    else if (type == "time" || type == "timetrack"){
        var hours;
        var minutes;

        var re = /([0-9][0-9]?)?(:[0-5][0-9])?/
        var result = re.exec(field.value)
        if (result==null || result.index > 0 || result[0].length != field.value.length){
            timeval = parseFloat(field.value);
            if (isNaN(timeval))
                hours = -1;
            else{
                hours = Math.floor(timeval);
                minutes = Math.floor((timeval-hours)*60+0.5);
            }
        }
        else{
            if (RegExp.$1.length > 0)
                hours = parseInt(RegExp.$1,10);
            else
                hours = 0;
            if (typeof(RegExp.$2) != "undefined" && RegExp.$2.length > 0)
                minutes = parseInt(RegExp.$2.substr(1),10);
            else
                minutes = 0;
        }
        if (hours >= 0 && minutes >= 0 && minutes < 60){
            field.value = hours + ":" + (minutes < 10 ? "0" : "") + minutes;
            validflag = true;
        }
        else{
            if (doalert) alert("Thời gian không hợp lệ, phải là (giờ:phút)");
            validflag = false;
        }
    }
    return validflag;
}