var selectedTab	= null;
var tabContent	= new Array();

function tabMouseOver(tab) {	
	if (tab != selectedTab)
		tab.className='tabHover';
}

function tabMouseOut(tab) {
	if (tab != selectedTab)
		tab.className='tab';
}

function toggleTabContent(tab, tabContentId) {	
	if (selectedTab != tab) {
		if (selectedTab != null)
			selectedTab.className = 'tab';
		selectedTab = tab;
		selectedTab.className = 'tabSelected';
	}
	
	for (i=0; i<tabContent.length; i++) {
		if (tabContentId != tabContent[i])
			document.getElementById(tabContent[i]).style.visibility = 'hidden';
		else
			document.getElementById(tabContent[i]).style.visibility = 'visible';
	}
}