function ActivateTab(Link, TabID) {
	var currentTab = document.getElementById(TabID);
	if(currentTab) {
		var links = Link.parentNode.parentNode.getElementsByTagName('a');
		for(var i = 0; i < links.length; i ++) {
			links[i].className = '';
		}
		
		var tabs = currentTab.parentNode.getElementsByTagName('div');
		for(var j = 0; j < tabs.length; j ++) {
			tabs[j].className = tabs[j].className.replace(' tab_off', '') + ' tab_off';
		}
		
		currentTab.className = currentTab.className.replace(' tab_off', '');
		Link.className = 'active';
	 }
	 
	 return false;
}