function confirmOperation(tekst){
  return confirm(tekst);
}

function openWindow(url){
  window.open(url,'popup','left=200, top=100, width=650, height=470, location=no, menubar=no, status=no, toolbar=no, scrollbars=yes, resizable=yes');
}

function displayWindow(url, width, height) {
        var Win = window.open(url,"displayWindow",'width=' + width + ',height=' + height + ',resizable=0,scrollbars=yes,menubar=no' );
}