IE4 = (document.all) ? 1 : 0;
         NS4 = (document.layers) ? 1 : 0;
         ver4 = (IE4 || NS4) ? 1 : 0;
	

function ShowSub(Sub){
if ((Sub.style.display == "") || (Sub.style.display == "none")) {
Sub.style.display = "block"
}
else {Sub.style.display = "none";}
return false;}