var selectedTab = null;

function showPanel(tab, name) {

	if(selectedTab) {
	
		selectedTab.style.backgroundColor = '';
		selectedTab.style.paddingTop = '';
		selectedTab.style.marginTop = '4px';
	
	}
	
	selectedTab = tab;
	selectedTab.style.backgroundColor = 'white';
	selectedTab.style.paddingTop = '6px';
	selectedTab.style.marginTop = '0px';
	for(i = 0; i < panels.length; i++) {
		
		document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block' : 'none';
	}
	
	return false;
	
}