var tabs = new Array('tab1', 'tab2');
function activateTab(tab) {
	for (i = 0; i < tabs.length; i++) {
		if (document.getElementById(tabs[i])) {
			document.getElementById(tabs[i]).style.display = 'none';
			document.getElementById(tabs[i] + '1').style.background = ""; 
			document.getElementById(tabs[i] + '2').style.fontWeight  = 'normal';
		} 
	}
	document.getElementById(tab).style.display = 'block';
	document.getElementById(tab + '1').style.background ='#d0ad6c';
	document.getElementById(tab + '2').style.fontWeight  = 'bold';
}