function getIdObject(objectId) {
        if(document.getElementById && document.getElementById(objectId)) {
          // W3C DOM
          return document.getElementById(objectId);
        } else if (document.all && document.all(objectId)) {
          // MSIE 4 DOM
          return document.all(objectId);
        } else if (document.layers && document.layers[objectId]) {
          // NN 4 DOM
          return document.layers[objectId];
        } else {
          return false;
        }
    };

	
	function schovej(id) {
		var img = getIdObject('img_'+id);
		var div = getIdObject('div_'+id);
		
		if (div.style.display=="none") {
			img.src="/resource/img/public/sub.gif";
			div.style.display="";
		} else {
			img.src="/resource/img/public/sup.gif";
			div.style.display="none";
		}
    	   	
    	return false;
    }    

	function otevriOkno(url) {
		window.open(url, "_blank", "width=1024,height=800,scrollbars=yes,toolbar=yes");
		return false;
	}	

	
	function openPlaces() {
		var img = getIdObject('img_places');
		var table = getIdObject('places');
		if (table.style.display=='none') {
			img.src = '/resource/img/public/close.gif';
			table.style.display = '';
		} else {
			img.src = '/resource/img/public/open.gif';
			table.style.display = 'none';
		}
	}
	
	function checkSpaConfirm(input) {
		if (input.checked) document.getElementById('resources').style.display = '';
		else document.getElementById('resources').style.display = 'none';
	}