function popup(url, title, pwidth, pheight)
{
	if (window.screen.width > 800)
	{
		ptop = 100;
		pleft = 100;
	}
	else
	{
		ptop = 5;
		pleft = 2;
	}
	
	var x = window.open(url, title, 'toolbar=no, menubar=no, locaion=no, directories=no, scrollbars=yes, resizable=yes, status=no, width='+pwidth+', height='+pheight+', top='+ptop+', left='+pleft+'');
	x.focus();
	if (x) return false;
}

function gEbI(obj) {
	return document.getElementById(obj);
}

function galerie(imgbig,img,gitem,alt) {							

	var galitm = gEbI('fotogalery').getElementsByTagName('div');
	
	for(i=0;i<galitm.length;i++) {
		galitm[i].className = 'img';
	}

	gitem.parentNode.className = 'img selected';

	var mainimg = gEbI('mainfoto');
	mainimg.src = imgbig;
	mainimg.alt = mainimg.title = alt;

	var mainimglink = gEbI('mainfotolink');
	mainimglink.href = img;
	mainimglink.alt = mainimglink.title = alt;
	
	return false;
}

function gotopage(novyWeb)
{
	novaStranka = novyWeb.options[novyWeb.selectedIndex].value
	
	if (novaStranka != "")
	{
		window.location = novaStranka
	}
}