// JavaScript Document

function Menu1(item1) {
 obj=document.getElementById(item1);
 col=document.getElementById("x" + item1);
 if (obj.style.display=="none") {
  obj.style.display="block";
 col.innerHTML="<span > - <\/span>";
 }
  else {
  obj.style.display="none";
  col.innerHTML="<span > + <\/span>";
 }
}