/* --- horizontal menu --- */
function showmenu(id) {
	var d = document.getElementById(id);
	for (var i = 1; i<=10; i++) {
		if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display='none';}
	}
	if (d) {d.style.display='block';}
}

/* --- add to favorites --- */
function AddToFavorites() {
	var title = document.title; 
 	var url = location.href;
	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel(title, url,"");
	} else if( window.external ) { // IE Favorite
		window.external.AddFavorite( url, title); 
	}	else if(window.opera && window.print) { // Opera Hotlist
		return true; 
	}
}

function check_email_address(adres){
	if (adres != "") {
		var re = new RegExp("[^@]{1,}[@]{1}[^@.]{1,}[.]{1}[^@]{1,}","gi");
		var wynik = re.test(adres);
		return wynik;
	}
}

function m_show( img ){
	window.open('show.php?url='+img, 'Image', 'width=500, height=300, scrollbars=no, toolbar=no,location=no, status=no, resizable=yes, screenX=120, screenY=100');
	return false;
}

function check_kontakt_form() {
	var f = document.getElementById('kontakt_form');
	if( f.kontakt_pytanie.value == '' ){
		alert ( LANG['KONTAKT_WPISZ_TRESC'] );
		return false;
	} else if( f.kontakt_podpis.value == '' ){
		alert ( LANG['KONTAKT_WPISZ_PODPIS'] );
		return false;
	} else if( f.kontakt_email.value == '' ){
    alert ( LANG['KONTAKT_WPISZ_ADRES_EMAIL'] );
		return false;
	} else if( check_email_address( f.kontakt_email.value ) == false ){
		alert ( LANG['KONTAKT_NIEPOPRAWNY_EMAIL'] );
		return false;
	} else return true;
}

function check_dates( da, db ){
	if( da.length != 10 ) return false;
	if( db.length != 10 ) return false;
	var daa = convert_date( da );
	var dbb = convert_date( db );
	if( daa <= dbb ) return true;
	return false;
}

function convert_date( dat ){
	var d = dat.substr( 0, 2 );
	var m = dat.substr( 3, 2 );
	var y = dat.substr( 6, 4 );
	return y+m+d;
}

function clear_date( pole ){
	var f = document.getElementById('zamowienie_form');
 	f.elements[pole].value = '';
}

function set_date( pole ){
	var f = document.getElementById('zamowienie_form');
	var p = f.elements[pole];
	return p;
}

function email_request( at ){
  var f = document.getElementById( 'newsletter_form' );
	f.email.value = at;
	f.email.style.color = 'red';
	setTimeout("clear_email_request()", 2000);
}

function clear_email_request(){
	var f = document.getElementById( 'newsletter_form' );
	f.email.value = '';
	f.email.style.color = '#0F5411';
	f.email.focus();
}