function validate_form(obj)
{
    valid = true;

    if ( document.on_line_katalog.term.value == "" )
    {
        alert ( "Zadajte hľadaný výraz." );
        valid = false;
    } else {
		var url = 'http://www.library.sk/i2/i2.search.cls?fld=G&ascii=1&term=' + obj.swrd.value;
		window.open(url);
	}
    return false;
}


if (KIOS == undefined) {
	var KIOS = {};
}
KIOS.closePopup = function(obj) {
	$(obj).setStyle('display', 'none');
	return false;
}