function DoShow(sLabel) {
    eval(
       "document.getElementById('spn"+sLabel+"').style.display='';"
      +"document.getElementById('spn"+sLabel+"P').style.display='none';"
      +"document.getElementById('spn"+sLabel+"M').style.display='inline-block';"
    );
  }

  function DoHide(sLabel) {
    eval(
       "document.getElementById('spn"+sLabel+"').style.display='none';"
      +"document.getElementById('spn"+sLabel+"P').style.display='inline-block';"
      +"document.getElementById('spn"+sLabel+"M').style.display='none';"
    );
  }

  function WriteNodebox(sLabel) {
    document.write("<Span Id=\"spn"+sLabel+"P\" class=\"nodeboxp\" OnClick=\"DoShow('"
      +sLabel+"')\">+</Span><Span Id=\"spn"+sLabel+"M\" class=\"nodeboxm\" OnClick=\"DoHide('"
      +sLabel+"')\">&minus;</Span>");
  }