function hover(imageName, imageSource){
  document[imageName].src=imageSource;
}

function outDiv(){
  textDiv.style.filter="alpha(opacity=40)";
}

function hoverDiv(){
  textDiv.style.filter="alpha(opacity=90)";
}

function browserSetUp(){
  if(navigator.appName == "Netscape"){
    textDiv.style.width=400;
  }
  else{
    textDiv.style.width=430;
  }
}