var selectedTab = null;
function showPanel(tab, name) {
 	if (selectedTab) {
		selectedTab.style.background ='none';
	}
	selectedTab = document.getElementById(tab);
	// alert(selectedTab);
	selectedTab.style.backgroundColor ='#DBDCDD';
	for(i = 0; i < panels.length; i++) {
		document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
	}
	return true;
}