if (document.images) {
  image1on = new Image();
  image1on.src = "images/home_mo.gif";

  image2on = new Image();
  image2on.src = "images/profile_mo.gif";

  image3on = new Image();
  image3on.src = "images/services_mo.gif";

  image4on = new Image();
  image4on.src = "images/resources_mo.gif";

  image5on = new Image();
  image5on.src = "images/contact_mo.gif";

  image1off = new Image();
  image1off.src = "images/home.gif";

  image2off = new Image();
  image2off.src = "images/profile.gif";

  image3off = new Image();
  image3off.src = "images/services.gif";

  image4off = new Image();
  image4off.src = "images/resources.gif";

  image5off = new Image();
  image5off.src = "images/contact.gif";

}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}
function openwindow(url) {
msg=open(url,'NewWindow','width=600,height=400,toolbar=no,copyhistory=yes,scrollbars=yes,resizable=no,directories=no,menubar=yes,status=yes,location=no');
}

// big() makes selected layer longer (height property)
function big(lyr) {
document.all[lyr].style.height='120px'; 
}
/* small() makes selected layer shorter (height property)*/
function small(lyr) {
document.all[lyr].style.height='16px';
}
/* start() makes all layers short to start with (height property)*/
function start() {
document.all.people.style.height='16px';
document.all.education.style.height='16px';
document.all.research.style.height='16px';
document.all.resources.style.height='16px';
document.all.events.style.height='16px';
document.all.services.style.height='16px';
}