function bookmarksite(title, url) {
	if (window.sidebar) // firefox
		window.sidebar.addPanel(title, url, "");
	else if (window.opera && window.print) { // opera
		var elem = document.createElement('a');
		elem.setAttribute('href', url);
		elem.setAttribute('title', title);
		elem.setAttribute('rel', 'sidebar');
		elem.click();
	} 
	else if (document.all)// ie
		window.external.AddFavorite(url, title);
}

function pokaz_blok(nazwa) {
	document.getElementById(nazwa).style.display = 'block';
}

function ukryj_blok(nazwa) {
	document.getElementById(nazwa).style.display = 'none';
}

function pp_okienko() {
	window.open('https://www.paypal.com/us/cgi-bin/webscr?cmd=xpt/cps/popup/OLCWhatIsPayPal-outside','olcwhatispaypal','toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=400, height=350');
}