/* 
 * Authors: Karen Evans, Philip Turbitt
 */

function menuRollover(buttonId, rollFunction) {
 switch(rollFunction) {
  case "rollover":
   document.getElementById(buttonId).src=eval(buttonId+"On");
   break;
  case "rollout":
   document.getElementById(buttonId).src=eval(buttonId+"Off");
   break;
 }
}