function rollon() {  
  if (window.event.srcElement.className == "Item") {  
     window.event.srcElement.className = "Highlight";  
  }  
}  
  
Rollover.onmouseover = rollon;  
  
function rolloff() {  
  if (window.event.srcElement.className == "Highlight") {  
     window.event.srcElement.className = "Item";  
  }  
}  
  
Rollover.onmouseout = rolloff;  

function rollons() {  
  if (window.event.srcElement.className == "Items") {  
     window.event.srcElement.className = "Highlights";  
  }  
}  
  
Rollovers.onmouseover = rollons;  
  
function rolloffs() {  
  if (window.event.srcElement.className == "Highlights") {  
     window.event.srcElement.className = "Items";  
  }  
}  
  
Rollovers.onmouseout = rolloffs;