// preload images used in toolbar rollovers

if (document.images)
   {
   var toolbarItems = new Array("home","admissions","education", "research","practice");
   var toolbarWidths = new Array(28,57,49,45,39);
   for (i=0; i<toolbarItems.length; i++)
      {
      for (j=1; j<3; j++)
         {
         thisItem = toolbarItems[i] + j;
         thisWidth = toolbarWidths[i];
         eval(thisItem + " = new Image(thisWidth,16)");
         eval(thisItem + ".src = '/shared/images/toolbar/" + thisItem + ".gif'");
         }
      }
   }


// rollovers

function rollOn(item)
   {
   if (document.images)
      {
      document.images[item].src = eval(item + "2.src");
      }
   }

function rollOff(item)
   {
   if (document.images)
      {
      document.images[item].src = eval(item + "1.src");
      }
   }


// dropdown menu for navigation

function navBar()
   {
   var URL = "document.navmenu.gobar.options[document.navmenu.gobar.selectedIndex].value";
   if (eval(URL) != "") 
      {
      document.location = eval(URL);
      }                       
   return true; 
   }