//separator opsiyonel decimal sayýlar için, fieldLength=0 ise girilen rakamýn fix bir boyu yok demektir.
function isfixNumber(fieldValue,fieldLength,separator) {
var inLen = fieldValue.length; 
var i;
var ch;
var decimalLen=0;
var retVal = true;
if (ch !='') {
	for(i=0; i<inLen; i++) {
   		ch=fieldValue.substring(i,i+1);
   		if (ch == separator) {
		decimalLen=inLen-i-1; }
			}// for
} // end if
if ((fieldLength != 0) && (inLen > fieldLength)) {retVal = false;}
return retVal;
} // isValidNumber

//****************************************************************************************/
function openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}
// ************************************************************************************/
// sadece verilen newStrCheck'in içinde bulunan karakterlerin yazýlmasýna izin verir.
function numberFormat(fld, e, newStrCheck) {
var sep = 0;
var key = '';
var i = j = 0;
var len = len2 = 0;
var strCheck = newStrCheck;
var aux = aux2 = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
if (whichCode == 13) return true;  // Enter
key = String.fromCharCode(whichCode);  // Anahtar deðeri anahtar koddan al
if (strCheck.indexOf(key) == -1) return false;  // Yanlýþ deðer 
}
// ************************************************************************************/
// sadece verilen newStrCheck'in içinde bulunan karakterlerin yazýlmasýna izin verir.
function alfaNumerikFormat(fld, e) {
var newStrCheck ="0123456789abcçdefgðhýijklmnoöpqrsþtuüvwxyzABCÇDEFGÐHIÝJKLMNOÖPRSÞTUÜVWXYZ";
var sep = 0;
var key = '';
var i = j = 0;
var len = len2 = 0;
var strCheck = newStrCheck;
var aux = aux2 = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
if (whichCode == 13) return true;  // Enter
key = String.fromCharCode(whichCode);  // Anahtar deðeri anahtar koddan al
if (strCheck.indexOf(key) == -1) return false;  // Yanlýþ deðer 
}
// ************************************************************************************/
// GIVES THE INDEX OF SELECTED RADIO CHOSE, -1 in no one selected.
function stateChecker(radioItem) {   
var j=-1;
var len=typeof(radioItem.length);
if (len=="undefined"){
  if( radioItem.checked) { j=0; }
}

else {
 for (var i = 0; i < radioItem.length; i++) {
        if (radioItem[i].checked=="1") {
         j=i;
         }   
 }
 }
 return j
}

//************************************************************************************/
// GIVES THE value  OF SELECTED RADIO CHOSE, null in no one selected.
function getRadioValue(radioItem) {   
var len=typeof(radioItem.length);
if (len=="undefined"){
  if( radioItem.checked) {
   return radioItem.value; 
   }
}
else {
 for (var i = 0; i < radioItem.length; i++) {
        if (radioItem[i].checked=="1") {
          return radioItem[i].value;
         }   
 }
 }
 return null;
}


//****************************************************************************************/
function isDigit(c)
{
var retVal = false;
if ((c >= '0') && (c <= '9'))
retVal = true;
return retVal;
}
//****************************************************************************************/
function isCharNew(c)
{
var retVal = false;
if ((c >= 'a') && (c <= 'z'))
retVal = true;
if ((c >= 'A') && (c <= 'Z'))
retVal = true;
return retVal;
}
//****************************************************************************************/
function isNumber(s)
{
var retVal = false;
for (var i = 0; i < s.length; i++)
if (isDigit(s.charAt(i)))
retVal = true;
else
{
retVal = false;
break;
}
return retVal;
}
//****************************************************************************************/
//separator opsiyonel decimal sayýlar için, fieldLength=0 ise girilen rakamýn fix bir boyu yok demektir.
function isValidNumber(fieldValue,fieldLength,separator) {
var inLen = fieldValue.length; 
var i;
var ch;
var decimalLen=0;
var retVal = true;
if (ch !='') {
	for(i=0; i<inLen; i++) {
   		ch=fieldValue.substring(i,i+1);
   		if (ch == separator) {
		decimalLen=inLen-i-1; }
		else {
		 if (isDigit(ch))
			retVal = true;
			else {
				retVal = false;
				break;
			}
		}
	}// for
} // end if
if ((fieldLength != 0) && (inLen != fieldLength)) {retVal = false;}
if ((decimalLen != 0) && (decimalLen > 2)) {retVal = false;}
return retVal;
} // isValidNumber

//****************************************************************************************/
//ilk tarihin son tarihen kücük olmasýný saðlýyor ...
function compareDate(year1, month1, day1, year2, month2, day2)
{
var date1 = new Date(year1, month1, day1);
var date2 = new Date(year2, month2, day2);
var datediff=date1 - date2;
if (datediff<0) {
return false;
}
return true;
}
//****************************************************************************************/
function placeFocus() {
if (document.forms.length > 0) {
var field = document.forms[0];
for (i = 0; i < field.length; i++) {
if ((field.elements[i].type == "text") || (field.elements[i].type == "textarea") || (field.elements[i].type.toString().charAt(0) == "s")) {
document.forms[0].elements[i].focus();
break;
         }
      }
   }
}

//****************************************************************************************/
function isChar(field) {
var valid = "abcçdefgðhýijklmnoöpqrsþtuüvwxyz"
var ok = "dogru";
var temp;
for (var i=0; i<field.value.length; i++) {
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1") {ok = "yanlis";}
}
if (ok == "yanlis") {
alert("Gecersiz!");
field.focus();
field.select();
   }
}

//

function windowOpener(url, name, args) {
if (typeof(popupWin) != "object"){
popupWin = window.open(url,name,args);
} else {
if (!popupWin.closed){ 
popupWin.location.href = url;
} else {
popupWin = window.open(url, name,args);
}
}
popupWin.focus();
}

//*********************************************************************************************/
function dateValid(objName) {
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
// var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "Jan";
strMonthArray[1] = "Feb";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Apr";
strMonthArray[4] = "May";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Aug";
strMonthArray[8] = "Sep";
strMonthArray[9] = "Oct";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dec";
strDate = objName;
if (strDate.length < 1) {
return true;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
strDateArray = strDate.split(strSeparatorArray[intElementNr]);
if (strDateArray.length != 3) {
err = 1;
return false;
}
else {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
}
booFound = true;
   }
}
if (booFound == false) {
if (strDate.length>5) {
strDay = strDate.substr(0, 2);
strMonth = strDate.substr(2, 2);
strYear = strDate.substr(4);
   }
}
if (strYear.length == 2) {
strYear = '20' + strYear;
}
strTemp = strDay;
strDay = strMonth;
strMonth = strTemp;
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth)) {
for (i = 0;i<12;i++) {
if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
intMonth = i+1;
strMonth = strMonthArray[i];
i = 12;
   }
}
if (isNaN(intMonth)) {
err = 3;
return false;
   }
}
intYear = parseInt(strYear, 10);
if (isNaN(intYear)) {
err = 4;
return false;
}
if (intMonth>12 || intMonth<1) {
err = 5;
return false;
}
if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
err = 6;
return false;
}
if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
err = 7;
return false;
}
if (intMonth == 2) {
if (intday < 1) {
err = 8;
return false;
}
if (LeapYear(intYear) == true) {
if (intday > 29) {
err = 9;
return false;
   }
}
else {
if (intday > 28) {
err = 10;
return false;
      }
   }
}
return true;
}
//*******************************
// Check an email address
function checkEmail(email) {
emailAddress = email.value;
// if email is blank, then it is ok...
if (isBlank(emailAddress)) return true;
// a valid email must be at least 5 chars (i.e: a@b.c)
// also, it must be less than 256 chars...
if (emailAddress.length < 5 || emailAddress.length > 255) return false;
var ats=0;
var dotsAfterAt=0;
var atIndex=0;
var errorFlag=false;
for (var i=0; i<emailAddress.length; i++) {
var c=emailAddress.charAt(i);
if (c == '@') {
atIndex = i;
ats++;
// rules: @ should not be first or last character,
// also, there should only be a single @
if (i == 0 ||
i+1 == emailAddress.length ||
ats > 1) {
errorFlag = true;
break;
}
// also, an @ can not be next to a dot.
if (i > 0 && i < emailAddress.length - 1) {
if (emailAddress.charAt(i-1) == '.' ||
emailAddress.charAt(i+1) == '.' ) {
errorFlag = true;
break;
}
}
}
else if (c == '.') {
// there must be at least one dot after the at symbol.
if (i > atIndex && ats > 0) {
dotsAfterAt++;
}
// rules: dot should not be first or last character
if (i == 0 || i+1 == emailAddress.length) {
errorFlag = true;
break;
}
}
}
// an email address must have at least one dot.
if (dotsAfterAt < 1) {
errorFlag = true;
}
if (errorFlag) return false;
else return true;
}
//***********


//**********************************************************************************************/

function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}



// ********** Check phone and fax numbers
function CheckField(field) {
for (var i=0; i<field.value.length; i++) {
var ch = field.value.substring(i,i+1);
if ((ch < "0" || ch > "9")&& ch!=" ") {
return false;
}
}
return true;
}
// ********** Check alpha-numeric numbers
function CheckFieldAlpNum(field) {
for (var i=0; i<field.value.length; i++) {
var ch = field.value.substring(i,i+1);
if ((ch >= "0" && ch <= "9")||(ch>="A" && ch <="Z")||(ch>="a" && ch <="z")) {
return true;
}
}
return false;
}
/*** Count Length without space ***/
function CountLength(field) {
var count=0;
for (var i=0; i<field.value.length; i++) {
var ch = field.value.substring(i,i+1);
//alert ('i='+i);
if (ch != " ") {
count++;
}
}
//alert ('c='+ count);
return count;
}

// **************** Functions for blank filed checking
function isBlank(s) {
for(var i=0; i<s.length; i++) {
var c=s.charAt(i);
if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
}
return true;
}

//****************************************************************************************/
//extractChar newChar value form the given fieldValue
function extractChar(fieldValue,newChar) {
var inLen = fieldValue.length; 
var i;
var ch;
var resultStr = "";
for(i=0; i<inLen; i++) {
   ch=fieldValue.substring(i,i+1);
   if (ch != newChar){ 
      resultStr=resultStr+ch}
}// for
return resultStr;
} // isValidNumber

function removeAlpha(t)
{
	news = "";
	for (var i = 0; i < t.value.length; i++)	
	if ((t.value.charAt(i) >= '0') && (t.value.charAt(i) <= '9'))
		{
			news = news + t.value.charAt(i);
		}
		if (t.value.length != news.length) 
		{
			alert("Bu alana sadece rakam girebilirsiniz !");
			t.focus();
		}
		t.value = news
		return;
}