		function pokaz(blok,td) {
					 document.getElementById(blok).style.visibility="visible";
					 document.getElementById(td).style.cursor="pointer";
		}
		function ukryj(blok,td) {
					 document.getElementById(blok).style.visibility="hidden";
		}
		function pokaz_ukryj(blok) {
			if (document.getElementById(blok).style.visibility=="visible") {
			  document.getElementById(blok+'_img').src="gfx/close.jpg";
				document.getElementById(blok).style.visibility="hidden";
 			  document.getElementById(blok).style.position="absolute";

 			  var em = document.getElementById(blok);
				var warstwy=em.getElementsByTagName("div");
				
				for(i=0;i<warstwy.length;i++) {
					if (warstwy[i].className.match(/(^|\s)ukryty(\s|$)/)) {
						warstwy[i].style.visibility="hidden";
						warstwy[i].style.position="absolute";
					}
				}

				var warst=em.getElementsByTagName("img");
				
				for(i=0;i<warst.length;i++) {
					warst[i].src="gfx/close.jpg";
				}

			} else {
			  document.getElementById(blok+'_img').src="gfx/open.jpg";
				document.getElementById(blok).style.visibility="visible";
			  document.getElementById(blok).style.position="relative";
			}
		}
		function laduj_css_rozmiar () {
			if (screen.width>1280) 
				document.write('<link href="style_1600.css" rel="stylesheet" type="text/css">');
			else 
				document.write('<link href="style_1280.css" rel="stylesheet" type="text/css">');	
		}
	  function otworz(obraz, width, height){
      okno=window.open("","",'toolbar=none,resizable=1,scrollbars=yes,width=' + width + ',height=' + height + '');
      okno.document.write("<HTML><title>.:: Zdjęcie ::.</title><BODY bgcolor=black leftmargin=0 topmargin=0> \
           <TABLE width='100%' height='100%' align='center' cellspacing=0 cellpadding=0  onClick='javascript:window.close()' style='cursor:pointer'>\
           <TR><TD align='center' valign=center><IMG src='"+obraz+"'></TD></TR></TABLE></BODY></HTML>");
		}

	function get_usluga(id_usl,lang) {
		advAJAX.get({
			 url :  'ajax/usluga.php',
			 parameters : {
						"lang" : lang,
						"id_usl" : id_usl
			 },
			 
			onInitialization : function(obj) {
				document.getElementById('lista_uslug').innerHTML = "";
			},
			onLoading : function(obj) {
				document.getElementById('opis_uslugi').innerHTML ="<div align='center' style='padding:50px 0'><img src='/gfx/loading_2.gif' alt=''/></div>";	
			},
			
			onSuccess : function(obj) {
				document.getElementById('opis_uslugi').innerHTML =obj.responseText;
			},
			
			onError : function(obj) {
				document.getElementById('opis_uslugi').innerHTML = " <center><b> Wystąpił błąd - spróbuj później </b></center>";
			}
			
		});
	}
	

