function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

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

var message = ""
function CheckMemberForm(){
	
	if (document.form1.txtadsoyad.value=='') {
		message = message + "Lütfen Adınızı ve Soyadınızı yazınız.";
	}
	
	if (document.form1.txteposta.value=='') {
		message = message + "\nLütfen E-Mail adresinizi yazınız.";
	}
	else {
	  if (document.form1.txteposta.value!="" & !isEmail(document.form1.txteposta.value)) {
	    message = message + "\nGeçerli E-Mail adresinizi yazmalısınız!";
	  }
	}
		
	if (document.form1.sehir.value=='-1') {
		message = message + "\nLütfen Şehrinizi listeden seçiniz.";
	}
	
	if (message != "") {
		alert(message)
		message = ""
		return false;
	}	

	return true;
}
/****************************************************************************************/

function isValidString(checkStr, checkOK) {
  decPoints = 0;
  allNum = "";

  for (i = 0;  i < checkStr.length;  i++){
    ch = checkStr.charAt(i);
    for (j = 0;  j < checkOK.length;  j++)
      if (ch == checkOK.charAt(j))
        break;
    if (j == checkOK.length){
      return false;
    }
    allNum += ch;
  }
return true;
}

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

function isEmail(str) {
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported)
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
  return (!r1.test(str) && r2.test(str));
}

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

function createCookie(name, value, days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        var expires = "; expires=" + date.toGMTString();
    }
    else var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}

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

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}

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

function eraseCookie(name) {
    createCookie(name, "", -1);
}

/****************************************************************************************/
function askConfirmation() {
	return confirm('Emin misiniz?');
}

function askDeleteConfirmation() {
	return confirm('Silmek istediğinize emin misiniz?');
}

function changeImage(id, url) {
     document.getElementById(id).src = url;
}

var preloadImageQueue = new Array();

function addPreloadImage(url) {
    preloadImageQueue.push(url);
}

function preloadImages() {
    var preloadedImages = new Array();

    for (i = 0; i < preloadImageQueue.length; i++) {
        preloadedImages[i] = new Image();
        preloadedImages[i].src = preloadImageQueue[i];
    }
}

window.onload = function() {
    preloadImages();
}

function updateRemainingCharCount(textbox, charLimit, labelId) {
    var label = document.getElementById(labelId);
    label.innerHTML = charLimit - textbox.value.length;
    label.style.color = (charLimit < textbox.value.length) ? '#FF0000' : null;
}