function setTabs(tabsId, contentId, activeTabId, activeContentId)
{
	var content = document.getElementById(contentId);

	/* skryti obsahu */
	if (content != null)
	{
		var nodes = content.childNodes;

		if (nodes != null)
		{
			for(var i = 0; i < nodes.length; i++)
			{
				if (nodes[i].nodeType == 1)
				{
					nodes[i].style.display = 'none';
				}
			}
		}
	}

	/* nastaveni neaktivity zalozek */
	var tabs = document.getElementById(tabsId);
	if (tabs != null)
	{
		var nodes = tabs.getElementsByTagName('li');

		if (nodes != null)
		{
			for(var i = 0; i < nodes.length; i++)
			{
				if (nodes[i].className && (nodes[i].className != 'active' && nodes[i].className != ' active')) {
					nodes[i].oldClass = nodes[i].className;
				} else {
					nodes[i].className = '';
				}
			}
		}

	}

	/* zobrazeni obsahu pod aktivni zalozkou */
	var activeContent = document.getElementById(activeContentId);
	if (activeContent != null)
	{
		activeContent.style.display = 'block';
	}

	/* nastaveni stylu vybrane zalozky */
	var activeTab = document.getElementById(activeTabId);
	if (activeTab != null)
	{
		if (activeTab.oldClass)
			activeTab.className = activeTab.oldClass;
		else
			activeTab.className = 'active';
	}

	return true;
}