if (navigator.appName=="Netscape")
{
	doc='document';
	st='';
	hid='hide';
}
else
{
	doc='document.all';
	st='.style';
	hid='hidden';
}

sb1=eval(doc+'["sub1"]'+st); 
sb2=eval(doc+'["sub2"]'+st); 
sb3=eval(doc+'["sub3"]'+st); 
sb4=eval(doc+'["sub4"]'+st); 
sb5=eval(doc+'["sub5"]'+st); 
sb6=eval(doc+'["sub6"]'+st); 
sb7=eval(doc+'["sub7"]'+st); 

function HideAll()
{
	top.status="";
	sb1.visibility=hid;
	sb2.visibility=hid;
	sb3.visibility=hid;
	sb4.visibility=hid;
	sb5.visibility=hid;
	sb6.visibility=hid;
	sb7.visibility=hid;
}

function Show(number)
{
	HideAll();
	number.visibility="visible";
}

function ChangeImage(name,file)
{
        document.images[name].src="images/menu/" + file;
}