function doMenu(item) {
 obj=document.getElementById(item);
 col=document.getElementById("x" + item);

 if (obj.style.display=="none") {
  obj.style.display="block";
  col.innerHTML="\<img src=\"/images/temp/arrow_down.gif\" alt=\"\"/>";
 }
 else {
  obj.style.display="none";
  col.innerHTML="\<img src=\"/images/temp/arrow_right.gif\" alt=\"\"/>";
 }
}