// JavaScript Document
var curpl = "";
function displayToolpl(id) {
  if( curpl != "" ) {
    hideToolpl( curpl );
  }
  
  pl = document.getElementById( id );
  pl.style.display="block";
  pl.style.zIndex=1000;
  curpl = id;
}

function hideToolpl(id) {
  pl = document.getElementById( id );
  pl.style.display="none";
  curpl = "";
}