function popup(adres,baslik,w,h)
{
  var win= null;
  var x=(screen.width-w-10)/2;
  var y=(screen.height-h-50)/2;
  var settings='toolbar=0, scrollbars=1, location=0, status=1, menubar=0, resizable=0,';
  settings+='width=' + w + ',';
  settings+='height=' + h + ',';
  settings+='left=' + x + ',';
  settings+='top=' + y;
  win = window.open(adres,baslik,settings);
  if(parseInt(navigator.appVersion)>=4)
  {
    win.window.focus();
  }
}
function ac(adres, baslik, w, h)
{
var win= null;
var x=(screen.width-w-10)/2;
var y=(screen.height-h-50)/2;
var settings='toolbar=0, scrollbars=1, location=0, statusbar=0, menubar=0, resizable=0,';
settings+='width='+w+',';
settings+='height='+h+',';
settings+='left='+x+',';
settings+='top='+y;
win = window.open(adres,baslik,settings);
if(parseInt(navigator.appVersion)>=4){win.window.focus();}
}
function mailFormCont()
{
  if ( document.getElementById("ad").value=="" )
  {
    alert("Please write your name.");
    return false;
  }
  else if ( document.getElementById("email").value=="" )
  {
    alert("Please control to your email.");
    return false;
  } 
  else if ( document.getElementById("konu").value=="" )
  {
    alert("Please write to subject.");
    return false;
  }
  else if ( document.getElementById("mesaj").value=="" )
  {
    alert("Please write your message.");
    return false;
  }
  else { return true; }
}
function closeDiv(a)
{
  document.getElementsById(a).style.display="none";
}
function autofill(a,b)
{
  var val=document.getElementById(a).value;
  if ( val.length == 3 ){
    document.getElementById(b).focus();
  }
}