function subcats(id) 
{
	if (document.getElementById(id).style.display == 'none') 
	{
		if (navigator.appName == "Microsoft Internet Explorer") 
		{
			eval("document.getElementById('"+id+"').style.display='block';");
		} else {
			eval("document.getElementById('"+id+"').style.display='table-row';");
		}
	}
	else 
	{
		document.getElementById(id).style.display = 'none';
	}
}