function datetime() {
	var data = new Date();
	var rok = data.getFullYear();
	var mies = data.getMonth()+1;
	var dzien = data.getDate();
	var godz = data.getHours();
	var min = data.getMinutes();
	var sec = data.getSeconds();
	min = (min<10) ? '0' + min : min;
	sec = (sec<10) ? '0' + sec : sec;
	mies = (mies<10) ? '0' + mies : mies;
	dzien = (dzien<10) ? '0' + dzien : dzien;
	return data_i_czas = rok + '.' + mies + '.' + dzien + ', ' + godz + ':' + min + ':' + sec;
}

function chDiv(divname,content) {
	document.getElementById(divname).innerHTML = content;
}

function showClock() {
	chDiv('clock',datetime());
	setTimeout("showClock()",1000);
}

var win='';
function zoom(url,xs,ys) {
	win = window.open(url,"WinGal",'width='+xs+' ,height='+ys+',resizable=0,scrollbars=no,menubar=no,left=20,top=20');
}

var newGcontent;

function slideshowClick(picture) {
	for (i=0; i<zdjecia.length; i++) {
		if(zdjecia[i]==picture) {
			zn = ((i+1)>=zdjecia.length) ? 'chPicture(\''+zdjecia[0]+'\');' : 'chPicture(\''+zdjecia[(i+1)]+'\');';
			zp = ((i-1)<0) ? 'chPicture(\''+zdjecia[(zdjecia.length-1)]+'\');' : 'chPicture(\''+zdjecia[(i-1)]+'\');';
		}
	}
	var newwin = dWindowCreate('c',520,440,100,'galeria zdjęć');
	newGcontent = dWindowContentCreate(newwin,520,440,'');
	var content = '<div style="text-align:center;font:bold 13px verdana;">\
	<div onclick="'+zp+'" style="width:220px;float:left;padding:5px;cursor:pointer">&laquo POPRZEDNIE</div>\
	<div onclick="'+zn+'" style="width:220px;float:left;text-align:right;padding:5px;cursor:pointer;">NASTĘPNE &raquo;</div>\
	<img src="'+picture+'" border="0"></div>';
	newGcontent.innerHTML = content;
}
function chPicture(picture) {
	for (i=0; i<zdjecia.length; i++) {
		if(zdjecia[i]==picture) {
			zn = ((i+1)>=zdjecia.length) ? 'chPicture(\''+zdjecia[0]+'\');' : 'chPicture(\''+zdjecia[(i+1)]+'\');';
			zp = ((i-1)<0) ? 'chPicture(\''+zdjecia[(zdjecia.length-1)]+'\');' : 'chPicture(\''+zdjecia[(i-1)]+'\');';
		}
	}
	var content = '<div style="text-align:center;font:bold 13px verdana;">\
	<div onclick="'+zp+'" style="width:220px;float:left;padding:5px;cursor:pointer">&laquo POPRZEDNIE</div>\
	<div onclick="'+zn+'" style="width:220px;float:left;text-align:right;padding:5px;cursor:pointer;">NASTĘPNE &raquo;</div>\
	<img src="'+picture+'" border="0"></div>';
	newGcontent.innerHTML = content;
}