//********************//
//** email kutu kontrol //

function clearField(field) {
	if (field.value == field.defaultValue) {
	field.value = "";
	}
}	
function checkField(field) {
	if (field.value == "") {
	field.value = field.defaultValue;
	}
}
function openWin(wName, wWidth, wHeight, wResize)
	{
	features = 'scrollbars=0,status=0,resizable=no' + ((wResize) ? 1 : 0) + ((wWidth) ? ',width=' + wWidth : '') + ((wHeight) ? ',height=' + wHeight : '');
	popWin = window.open('', wName, features);
        if(popWin.focus) { popWin.focus(); }
        return true;
	}


//**************//
// buton disable

function disableButton(theButton)
	{
	 theButton.value="Processing...";
	 theButton.disabled = true;
	 theButton.form.submit();
	}


//************************//
//** arama kelime kontrol //

function search_onsubmit() {
	
	if (search.strSearch.value.length<3) {
		alert('Please specify at least 3 letters to start search process!');
		document.search.strSearch.focus(); 
		return false;
		}

	if (search.strSearch.value == " Search Site") {
		alert("Please specify a word to start search process!");
		document.search.strSearch.focus(); 
		return false;
		}
}


//*******************//
// pop-up kontrolleri

function PopupPic(sPicURL) { 
	window.open("product_popup.asp?"+sPicURL, "", "resizable=0,height=300,width=300");
}


//*******************//
//** jump menu scripti //

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


//*****************************//
//** aklimdakiler silme islemi //

function RemoveItem(intId)
{
	input_box=confirm("Are you sure to remove this book from your Buy Later List?");
	if (input_box==true)

	{ 
	// Tamam düğmesine basılırsa
		location.replace("?prosess=Remove&item="+ intId);
	}

else
	{
	// İptal düğmesine basılırsa
		location.replace("javascript:;void(0)");
	}

}


//*****************************//
//** sepettekileri silme islemi //

function DelItem(intId)
{
	input_box=confirm("Are you sure to remove this book from your shopping cart?");
	if (input_box==true)

	{ 
	// Tamam düğmesine basılırsa
		location.replace("prosess_updatecart.asp?prosess=Del&item="+ intId);
	}

	else
	{
	// İptal düğmesine basılırsa
		location.replace("javascript:;void(0)");
	}

}


//***********************//
// form check core kodlari

function fieldchecker(fieldname,formname){
	if(!formname) formname = "0";
	if(document.forms[formname].elements[fieldname].value.replace(/^\s*|\s*$/g,"") == ""){
		document.forms[formname].elements[fieldname].focus();
		return false;}
	return true;}

function radiochecker(fieldname,formname) {
	if(!formname) formname = "0"; 
	for (var i = 0; i < document.forms[formname].elements[fieldname].length; i++) { var e = document.forms[formname].elements[fieldname][i];
		if(e.checked) {return true;}
		}
	return false;}

function emailCheck (formName,emailStr) {
	emailStr = document.forms[formName].elements[emailStr].value;
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		alert("Your e-mail address does not seen valid! (Please check @ and . signs)")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	if (user.match(userPat)==null) {
		alert("Your e-mail address username part does not seen valid!")
		return false
	}
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Your IP address does not seen valid!")
			return false
			}
		}
		return true
	}
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("Your e-mail address does not seen valid!")
		return false
	}
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
		domArr[domArr.length-1].length>3) {
	   alert("Your e-mail address should end with 3 letter domain name or 2 letter country code!")
	   return false
	}
	if (len<2) {
	   var errStr="Your e-mail address is not valid!"
	   alert(errStr)
	   return false
	}
	return true;
}

isNS=(document.layers || (document.getElementById && !document.all)) ? true : false;

function onlyNumber(e) {
var keyCode = (isNS) ? e.which : e.keyCode;
if ((keyCode<48 || keyCode>57)&&keyCode!=8&&keyCode!=0&&keyCode!=44){
	return false;}
	}


//***************************//
//** site uye girisi kontrol //

function checkloginform() {
	if (member_login.username.value == "" || member_login.password.value == "") {
	alert("Please use your username and password to login!");
	document.member_login.username.focus();
	return false;
	}
}


//***************************//
//** şifre hatırlatma kontrol //

function lostpassword() {
	if (lost_password.username.value == "") {
	alert("Please specify your username!");
	document.lost_password.username.focus();
	return false;
	}
}

//***************************//
//** sifre degistirme kontrol //

function updatepassword() {
	if (update_password.pass.value == "" || update_password.pass1.value == "" || update_password.pass2.value == "") {
	alert("To change your password, you have to specify all information!");
	document.update_password.pass.focus();
	return false;
	}
}


//********************//
// tavsiye formu kontrolu

function check_recommend_form(){
	if(!fieldchecker("sender","recommend_form")){ alert("Please specify your name and surname!"); return false};
	if(!fieldchecker("senderemail","recommend_form")){ alert("Please specify your e-mail address!"); return false};
	if(!emailCheck("recommend_form","senderemail")){ return false};	
	if(!fieldchecker("receiver","recommend_form")){ alert("Please specify your friends name and surname!"); return false};
	if(!fieldchecker("receiveremail","recommend_form")){ alert("Please specify your friends e-mail address!"); return false};
	if(!emailCheck("recommend_form","receiveremail")){ return false};
	return true;
}

//***********************//
// iletisim formu kontrolu

function checkcontactform(){
	if(!fieldchecker("sender","contact_form")){ alert("Please specify your name and surname!"); return false};
	if(!fieldchecker("email","contact_form")){ alert("Please specify your e-mail address!"); return false};
	if(!emailCheck("contact_form","email")){ return false};
	if(!fieldchecker("message","contact_form")){ alert("Please specify message content!"); return false};
	return true;
}


//***********************//
// yeni uye formu kontrolu

function checknewmember(){
	if(!fieldchecker("name","member_new")){ alert("Please specify your name!"); return false};
	if(!fieldchecker("surname","member_new")){ alert("Please specify your surname!"); return false};
	if(!fieldchecker("email","member_new")){ alert("Please specify your e-mail address!"); return false};
	if(!emailCheck("member_new","email")){ return false};
	if(!fieldchecker("address","member_new")){ alert("Please specify your address information!"); return false};
	if(!fieldchecker("city","member_new")){ alert("Please specify your city location!"); return false};
	if(!fieldchecker("country","member_new")){ alert("Please specify your country location!"); return false};
	if(!fieldchecker("phonecode","member_new")){ alert("Please specify your telephone area code number!"); return false};
	if(!fieldchecker("phone","member_new")){ alert("Please specify your telephone number!"); return false};
	if (document.member_new.username.value.length<6)
	   {
		 alert ("Please specify your username at least 6 letters!");
		 document.member_new.username.focus();
		 return false; 
	   }

	if (document.member_new.password1.value == "")
	   {
		 alert ("Please specify your password!");
		 document.member_new.password1.focus();
		 return false; 
	   }

	if (member_new.password1.value.length<6)
	   {
		 alert ("Please specify your password at least 6 letters!");
		 document.member_new.password1.focus();
		 return false; 
	   } 

	if (document.member_new.password2.value == "")
	   {
		 alert ("Please specify your password again!");
		 document.member_new.password2.focus();
		 return false; 
	   }

	if (member_new.password2.value.length<6)
	   {
		 alert ("Please specify your password at least 6 letters!");
		 document.member_new.password2.focus();
		 return false; 
	   }

	if (document.member_new.password1.value != document.member_new.password2.value)
	   {
		alert ("Your passwords do not match each other. Please specify your passwords again!");
		document.member_new.password1.value = "";
		document.member_new.password2.value = "";
		document.member_new.password1.focus();
		return false;
		}
		return true;
	}

//**********************************//
// uye bilgi guncelleme formu kontrolu

function checkmemberupdate(){
	if(!fieldchecker("name","member_info")){ alert("Please specify your name!"); return false};
	if(!fieldchecker("surname","member_info")){ alert("Please specify your surname!"); return false};
	if(!fieldchecker("email","member_info")){ alert("Please specify your e-mail address!"); return false};
	if(!emailCheck("member_info","email")){ return false};
	if(!fieldchecker("address","member_info")){ alert("Please specify your address information!"); return false};
	if(!fieldchecker("city","member_info")){ alert("Please specify your city location!"); return false};
	if(!fieldchecker("country","member_info")){ alert("Please specify your country location!"); return false};
	if(!fieldchecker("phonecode","member_info")){ alert("Please specify your telephone area code number!"); return false};
	if(!fieldchecker("phone","member_info")){ alert("Please specify your telephone number!"); return false};
	return true;
}


//*****************/********//
//** tavsiye ekleme kontrol //

function checkadvise() {

if(!fieldchecker("gonderenisim","tavsiye")){ alert("Please specify your name and surname!"); document.tavsiye.gonderenisim.focus(); return false};
if(!emailCheck("tavsiye","gonderenmail")){  document.tavsiye.gonderenmail.focus(); return false};
if(!fieldchecker("kimeisim","tavsiye")){ alert("Please specify your friends name and surname!"); document.tavsiye.kimeisim.focus(); return false};
if(!emailCheck("tavsiye","kimemail")){  document.tavsiye.kimemail.focus(); return false};
}


//**********************************//
//** gelismis arama  ekleme kontrol //

function checkadvancedform() {

	if (document.advanced_form.src_author.value =="") {}
	else{
		if (advanced_form.src_author.value.length<3)
		   {
			alert ("Please specify author name at least 3 letter!");
			document.advanced_form.src_author.focus();
			return false; 
			}			
		}
	
	if (document.advanced_form.src_book.value =="") {}
	else{
		if (advanced_form.src_book.value.length<2)
		   {
			alert ("Please specify book name at least 2 letter!");
			document.advanced_form.src_book.focus();
			return false; 
			}			
		}
	
	if (document.advanced_form.src_publisher.value =="") {}
	else{
		if (advanced_form.src_publisher.value.length<3)
		   {
			alert ("Please specify publisher name at least 3 letter!");
			document.advanced_form.src_publisher.focus();
			return false; 
			}			
		}

	if (document.advanced_form.src_isbn.value =="") {}
	else{
		if (advanced_form.src_isbn.value.length<3)
		   {
			alert ("Please specify ISBN number at least 3 letter!");
			document.advanced_form.src_isbnr.focus();
			return false; 
			}			
		}
}

//****************//
// e-mail adresleri

var emailhost = "zerobooksonline.com"
var email1 = "info"

//**********************************//
// uye bilgi guncelleme formu kontrolu

function checkolddelivery(){
	if(!fieldchecker("name","olddelivery")){ alert("Please specify your name!"); return false};
	if(!fieldchecker("surname","olddelivery")){ alert("Please specify your surname!"); return false};
	if(!fieldchecker("address","olddelivery")){ alert("Please specify your address information!"); return false};
	if(!fieldchecker("city","olddelivery")){ alert("Please specify your city location!"); return false};
	if(!fieldchecker("phonecode","olddelivery")){ alert("Please specify your telephone area code number!"); return false};
	if(!fieldchecker("phone","olddelivery")){ alert("Please specify your telephone number!"); return false};
	return true;
}

function checknewdelivery(){
	if(!fieldchecker("name","newdelivery")){ alert("Please specify your name!"); return false};
	if(!fieldchecker("surname","newdelivery")){ alert("Please specify your surname!"); return false};
	if(!fieldchecker("address","newdelivery")){ alert("Please specify your address information!"); return false};
	if(!fieldchecker("city","newdelivery")){ alert("Please specify your city location!"); return false};
	if(!fieldchecker("country","newdelivery")){ alert("Please specify your country location!"); return false};
	if(!fieldchecker("phonecode","newdelivery")){ alert("Please specify your telephone area code number!"); return false};
	if(!fieldchecker("phone","newdelivery")){ alert("Please specify your telephone number!"); return false};
	return true;
}


//*********************************************//
// garanti odeme oncesi teslimatli form kontrolu

function checkformshipment() {
	if(!radiochecker("shipment","strForm")){ alert("Please select a delivery method!"); return false};

	strForm.submit.value="Processing...";
	strForm.submit.disabled = true;
 }


 //********************************//
// garanti odeme oncesi form kontrolu

function checkformgaranti() {
	strForm.submit.value="Processing...";
	strForm.submit.disabled = true;
 }