function ShowTab(e1, e2, e3) { 
	for(var i=1; i<=e3; i++){
		document.getElementById("w"+i).style.display="none";
		document.getElementById("tab_"+i).className="tab_default";
		}
	document.getElementById(e1).style.display="";
	document.getElementById(e2).className="tab_current";
}
function ShowTab8(e1, e2) { 
	for(var i=1; i<=8; i++){
		document.getElementById("w"+i).style.display="none";
		document.getElementById("tab_"+i).className="tab_default8";
		}
	document.getElementById(e1).style.display="";
	document.getElementById(e2).className="tab_current8";
}