var panels = new Array('panel1', 'panel2', 'panel3', 'panel4', 'panel5');
var selectedPanel = null;
function showPanel(panel, name)
{
 	selectedPanel = panel;
	for(i = 0; i < panels.length; i++)
	{
		document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
	}
	return false;
}