function openPOPUP(Name,H,W){
// window.open(Name, 'newwindow', config='height='+H+',width='+W+', toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, directories=no, status=no');
// window.open(Name, 'windowname', 'width='+H+',height='+W+', toolbar=no, menubar=no, scrollbars=no, resizable=no,location=yes, directories=yes, status=yes');
 var popup_width = H;
var popup_height = W;
 day = new Date();
 id = day.getTime();
 eval("page" + id + " = window.open(Name, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='+popup_width+',height='+popup_height+'');");
}

function openPOPUP2(Name,H,W){
// window.open(Name, 'newwindow', config='height='+H+',width='+W+', toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, directories=no, status=no');
// window.open(Name, 'windowname', 'width='+H+',height='+W+', toolbar=no, menubar=no, scrollbars=no, resizable=no,location=yes, directories=yes, status=yes');
 var popup_width = H;
var popup_height = W;
 day = new Date();
 id = day.getTime();
 eval("page" + id + " = window.open(Name, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width='+popup_width+',height='+popup_height+'');");
}






function RequireItem(Name,Msg) { 
	var obj=Name;
	if (obj.value=='')
		return '- ' + Msg + "\n";
	else
		return '';
}

function RequireItemInner(Name,Msg) { 
	var obj=Name;
	var v="";
	//alert(obj.innerText);  // IE
	//alert(obj.textContent);  
  	if(obj.innerText !=""){// ใช้ FF เข้ามา
       v = obj.textContent;
	}
	if(obj.textContent!=""){
        v = obj.innerText;
	}
	if (v =='')
		return '- ' + Msg + "\n";
	else
		return '';
}

function CheckLength(Name,Len,Msg){
	var obj=Name;
	if   (obj.value.length<Len) 
	     return '- ' + Msg + "\n";
	else
		return '';

}

function MatchItem(Name1,Name2,Msg) { 
	var obj1=Name1;
	var obj2=Name2;
	if (obj1.value!=obj2.value)
		return '- ' + Msg + "\n";
	else
		return '';
}

function echeck(str) { 
	//alert(str);
			var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		   // alert("กรุณาตรวจสอบรูปแบบ Email")
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("กรุณาตรวจสอบรูปแบบ Email")
		    return false;
		 }

 		 return true;			
	}

/*function EmailItem(Name,Msg){
	var emailID=document.getElementById('txtEmail');
	
	if ((emailID.value==null)||(emailID.value=="")){
		//alert("กรุณากรอกข้อมูล Email")
		emailID.focus()
		return '- ' + Msg + "\n";
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		//return false;
		return '- ' + Msg + "\n";
	}
	return Msg ="";
 }*/
           
function EmailItem(Name,Msg) { 
 
 	var obj=Name;
	str = obj.value;
    var emailRE = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
    //var Msg = "";

 	if(str != ""){
					   if (!emailRE.test(str)){
							return Msg = '- ' + Msg + "\n";
						}else{
							return Msg ="";
						}
     }else{
						return '- ' + Msg + "\n";
	 }
}
function EmailItem2(str,Msg) { 

    var emailRE = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
    //var Msg = "";

 	if(str != ""){
					   if (!emailRE.test(str)){
							return Msg = '- ' + Msg + "\n";
						}else{
							return Msg ="";
						}
     }else{
						return '- ' + Msg + "\n";
	 }
}
/*function EmailItem(Name,Msg) { 
	var obj=Name;
	str = obj.value;
	if (str =='')
		return '- ' + Msg + "\n";
	else if ((str.indexOf(".") > 2) && (str.indexOf("@") > 0))
		return '';
	else
		return '- ' + Msg + "\n";
}*/

function DateItem(Name,Msg) { 
	//var obj=MM_findObj(Name);
	str = Name.value;
	if (str =='')
		return '';
	else if (str.indexOf("-") > 1)
		return '';
	else
		return '- ' + Msg + "\n";
}

function NumberItem(Name,min,max,Msg) { 
	var str = Name.value;
	var digit='-0123456789,';
for (var i=0;i<str.length;i++)  {
		var onechar=str.substr(i,1);
		if (digit.indexOf(onechar)==-1)
		return '- ' + Msg + ' Not number.\n';
    }
	if (str < min || str > max)	
		return '- ' + Msg + ' Out of range.\n';	
	else{
		return '';
	}
}

function NumberOnly(Name,evt) { 
	  // keyCode IE
		var obj = document.getElementById(Name);
 
		if(evt.charCode==undefined){
			e_k = evt.keyCode; //charCode FireFox
		 }else{    

			if(evt.keyCode==37 || evt.keyCode==39 || evt.keyCode==46 || evt.keyCode==9 || evt.keyCode==8)
		        e_k = evt.keyCode; 
             else
			 e_k = evt.charCode; 

			 
		}
      
 
         
		if(   (e_k>=48 && e_k<=57)   || evt.keyCode==37 || evt.keyCode==39 || evt.keyCode==46 || evt.keyCode==9   || evt.keyCode==8){
		 
		}else{
          alert('กรุณากรอกตัวเลข');
		  return false;
		}
}


function DecimalItem(Name,min,max,Msg) { 
	var obj=MM_findObj(Name);
	var str = obj.value;
	var digit='-0123456789.,';
	for (var i=0;i<str.length;i++)  {
		var onechar=str.substr(i,1);
		if (digit.indexOf(onechar)==-1)
		return '- ' + Msg + ' Not number.\n';
    }
	if (str < min || str > max)	
		return '- ' + Msg + ' Out of range.\n';	
	else{
		return '';
	}
}

function remove(s, t) {
  i = s.indexOf(t);
  r = "";
  if (i == -1) return s;
  r += s.substring(0,i) + remove(s.substring(i + t.length), t);
  return r;
  }

function englishOnly(objName,evt){
        // keyCode IE
		//var obj = document.getElementById(objName);
		//if(evt.charCode==undefined){
		//	e_k = evt.keyCode; //charCode FireFox
		 //}else{    
	//		e_k = evt.charCode;
	//	}

			var obj = document.getElementById(objName);
 
		if(evt.charCode==undefined){
			e_k = evt.keyCode; //charCode FireFox
	 
		 }else{    
   
		   if(evt.keyCode==8 || evt.keyCode==9 || evt.keyCode==9 || evt.keyCode==37 || evt.keyCode==39 || evt.keyCode==46 || evt.keyCode==127){  // 8 is backspace  // 9 is tab
		   e_k = evt.keyCode; 
 
		   }else
			e_k = evt.charCode;
		 
		}
         
		if(  (e_k>=0 && e_k<=122) || (e_k>=48 && e_k<=57) || (e_k==32)  || (e_k==8)  || (e_k==9)   || (e_k==37) || (e_k==39) || (e_k==46) || (e_k==127)   ){
            
		}else{
          alert('กรุณากรอกข้อมูลภาษาอังกฤษ');
		  return false;
		}
   }//end function






///////////////////////// START CHECK DATE //////////////////////////////
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 strDay=dtStr.substring(0,pos1)
	var strMonth=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 (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
	 
		return "- กรุณาข้อมูล 'วันที่' ที่เหมาะสม\n"
	}

	if (strMonth.length<1 || month<1 || month>12){
 
		return "- กรุณาข้อมูล 'เดือน' ที่เหมาะสม\n"
	}

	if (pos1== -1 || pos2== -1){
		return "- กรุณาตรวจสอบรูปแบบวันที่ : dd-mm-yyyy\n";
	}
	
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
 
		return "- กรุณากรอกข้อมูล 'ปี' โดยเป็นตัวเลขสี่หลัก เป็น คศ. \n"
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
	 
		return "- กรุณากรอกข้อมูลที่เป็นวันที่\n"
	}
return "";
}
///////////////////////////// END FUNCTION DATE ////////////////////////