var curTabContent = null;
	var curTab = null;
	function changeTab( tab, tabContentElement )
	{
		if( curTabContent != null )
			curTabContent.style.display = "none";
			
		if( curTab != null )
			curTab.className = "";
		
		if( tabContentElement != null )
		{
			curTabContent = tabContentElement;
			curTabContent.style.display = "block";
		}
		
		if( tab != null )
		{
			curTab = tab;
			curTab.className = "tabsNavlistActive";
		}
		
	};
	
	function switchTabs( index )
	{
		var tab = document.getElementById("tab"+index);
		var tabContents = document.getElementById("tabContent"+index);
		
		changeTab( tab, tabContents );
	};
	
	function setTabs()
	{
		var contents = document.getElementById("tabContents");
		var cs = contents.childNodes;
		var n;
		for (var i = 0; i < cs.length; i++) {
			if (cs[i].nodeType == 1 && cs[i].className == "tab-contents") {
				cs[i].style.display = "none";
			}
		}
		
		switchTabs( 1 );
	};