function closeIt() {
 showBox.style.display = "none" 
} 
 
function openIt() {
 var items = 4 ;
 currEl = window.event.toElement
   if (currEl.className == "barItem") {
     newId = currEl.id + "box" 
      showBox = document.all(newId) 
       showBox.style.display = "block" 
       }        
    
  for (i=1; i<=items; i++) {
    openItem="item" + i + "box"
      elOpen = document.all(openItem)
        if ((elOpen.style.display == "block")&&(elOpen != showBox)) 
          elOpen.style.display = "none" 
 
    if (currEl.className == "closeIt") { elOpen.style.display = "none"  } 
   }
}

document.onmouseover = openIt 
document.onclick = closeIt