var currentPanel = 101;

function showCurrent(id ){
	//hide visible panel, show selected panel, set tab
	hidePrevious();
	showit = "";
	selected = "selectedTab";	
	document.getElementById(id).style.display = showit;
	document.getElementById("tab"+id).className = selected;
	currentPanel = id;
}

function hidePrevious(){
	showit = "none";
	unselected = ""; 
	document.getElementById(currentPanel).style.display = showit;	
	document.getElementById("tab"+currentPanel).className = unselected;
}