function checkrequired(which) 
{
	var pass=true;
	if (document.images) {
		for (i=0;i<which.length;i++) {
			var tempobj=which.elements[i];
			if (tempobj.name.substring(0,4)=="req_") {
				if (((tempobj.type=="text"||tempobj.type=="textarea")&& tempobj.value=='') || (tempobj.type.toString().charAt(0)=="s"&& tempobj.selectedIndex==0)) {pass=false; break;}
			}
		}
	}
	
	if (!pass) {
		shortFieldName=tempobj.name.substring(4,30);
		alert("Field ini wajib di-isi");
		tempobj.focus();
		return false;
	} else return true;
}

function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue;
}


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 dtCh= "/";
	var minYear=1900;
	var maxYear=2100;
	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 (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
return true
}

function checklist(which) 
{
	var pass=true;
	if (document.images) {
		for (i=0;i<which.length;i++) {
			var tempobj=which.elements[i];
			if (tempobj.name.substring(0,5)=="need_") {
				if (((tempobj.type=="text"||tempobj.type=="textarea")&& tempobj.value=='') || (tempobj.type.toString().charAt(0)=="s"&& tempobj.selectedIndex==0)) {pass=false; break;}
			}
		}
	}
	
	if (pass) {
		var timeIn = parseInt(trim(which.elements["need_timeInHour"].value));
		var timeOut = parseInt(trim(which.elements["need_timeOutHour"].value));
		if (timeIn == timeOut){
			if (trim(which.elements["timeInMin"].value)=="" || trim(which.elements["timeInMin"].value)==" "){
				var minIn = 0;
			}else{
				var minIn = parseInt(trim(which.elements["timeInMin"].value));
			}
			if (trim(which.elements["timeOutMin"].value)=="" || trim(which.elements["timeOutMin"].value)==" "){		
				var minOut = 0;
			}else{
				var minOut = parseInt(trim(which.elements["timeOutMin"].value));
			}
			timeIn = timeIn*60 + minIn;
			timeOut = timeOut*60 + minOut;
		}
		
		if (timeIn >= timeOut){
			alert ("Time Out must larger than Time In.");
			which.elements["need_timeOutHour"].focus();
			pass = false;
		}
	}else {
		alert("Please make sure the required field was properly completed.");
		tempobj.focus();
	}
	
	if (!pass) {
		return false;
	} else return true;
}

function newWindow(mypage,myname,w,h,features) {
  if(screen.width){
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  }else{winl = 0;wint =0;}
  if (winl < 0) winl = 0;
  if (wint < 0) wint = 0;
  var settings = 'height=' + h + ',';
  settings += 'width=' + w + ',';
  settings += 'top=' + wint + ',';
  settings += 'left=' + winl + ',';
  settings += features;
  win = window.open(mypage,myname,settings);
  win.window.focus();
}