// okna

function window1(a) {
window.open (a, 'char', 'toolbar=no, menubar=no, location=no, directories=no, scrollbars=no, resizable=yes, status=yes, width=550, height=413, top=80, left=70');
}

function window2(a) {
window.open (a, 'char', 'toolbar=no, menubar=no, location=no, directories=no, scrollbars=no, resizable=yes, status=yes, width=413, height=550, top=80, left=70');
}

function window3(a) {
window.open (a, 'char', 'toolbar=no, menubar=no, location=yes, directories=no, scrollbars=yes, resizable=yes, status=yes, width=800, height=600, top=80, left=70');
}

function highlight0(a) {
a.style.backgroundColor='#ffffff';
}

function highlight1(a) {
a.style.backgroundColor='#efefef';
}

// skryt cast stranky

function zobrazSkryj(idecko){
  el=document.getElementById(idecko).style;
  el.display=(el.display == 'block')?'none':'block';
}