var preloadFlag=false;

function Preload()
{
preloadFlag = true;
}

function changeImg(img_name,img_src) {
if (preloadFlag==true) {
document[img_name].src=img_src;
}
}

function popitup(kep)
    {
      var scroll='no';
      page='../favat/popup.php?kepfile='+kep+'&scroll='+scroll;
      w = 1024;
      h = 768;
      l = 1;
      t = 1;
      settings = 'scrollbars=' + scroll + ',resizable=no,status=no,menubar=no,width=' + w + ',height=' + h + ',left='
                 + l + ',top=' + t + ',screenX=' + l + ',screenY=' + t;
      win = window.open(page,'popup',settings);
      win.focus(); 
    }