var preLoaded=[];

  $(document).ready(function(){
    
    /*preload images:*/
    var images=['sinav_butonu_down','ok_s2','arama_butonu_s2','lab_logo_s2'];
    $.each(images,function(){
      var i = document.createElement('img');
      i.src = "images/"+this+".png";
      preLoaded.push(i);
    });


    //mail link
    $('.at').text('@');
    $('.dot').text('.');
    $.each($('.mailLink'),function(){
      $(this).attr('href','mailto:'+$(this).text());
    });


    //toggle images
    var imgs=$('.toggleImage');

    setInterval(function(){
            var nextImg=imgs.filter(':visible').next();
            if (!nextImg.length) nextImg=imgs.eq(0);
            imgs.hide();
            nextImg.show();
    },5000);



  });