//	otevre nove okno a natahne do neho danou stranku
function showin(url) {
	window.open(url, '', "toolbar=no,status=no,scrollbars=yes,resizable=yes,width=500,height=550");
}
function showpic(url) {
	window.open(url, '', "toolbar=no,status=no,scrollbars=no,resizable=yes,width=500,height=550");
}
function resizeWindow() {
	this.window.resizeTo(document.images['obraz'].width + 30, document.images['obraz'].height + 70);
}