function writeDiv(content) {
  if (document.getElementById) {
    document.getElementById("contentDiv").innerHTML = content;
  } 
  else if (document.all) {
    document.all["contentDiv"].innerHTML = content;
  } 
  else if (document.layers) {
    content_div_width = 540;
    if (!document.contentDiv) return;

    mainDiv = document.contentDiv;
    with (mainDiv.document) {
      write(" ");
      close();
    }
    newDiv = new Layer(content_div_width, document.contentDiv);
    with (newDiv.document) {
      write(content);
      close();
    }

    newDiv.visibility = "inherit";
    document.contentDiv.visibility =  "show";	
  }
}