// free to use as long as this copyright notice stays intact
// copyright 2001 Jeff Rouyer and Eddie Traversa
// eddies site http://dhtmlnirvana.com/
// jeff’s site http://www.htmlguru.com/

  ns4    = (document.layers);
  ns6    = (!document.all && document.getElementById);
  ie4    = (document.all && !document.getElementById && !window.opera);
  ie5    = (document.all && !document.fireEvent && !window.opera);
  op7  	 = (window.opera && document.createComment) ;
  w3dom  = (document.getElementById || op7);

function defineObjects() {
  page          = new Object();
  page.width    = (ns4 || ns6 ||op7) ? innerWidth  : document.body.clientWidth;
  page.height   = (ns4 || ns6 ||op7) ? innerHeight : document.body.clientHeight;
  content       = new layerSetup(null,"contentmain",0,0,7,"visible");

				  setTimeout("actionManager()",500);
}

function layerSetup(parent,id,left,top,zindex,visibility) {
  if(ns4) {
    this.obj             = (parent != null) ? parent.document[id]          : document[id];
    this.obj.htm         = (parent != null) ? parent.document[id].document : document[id].document;
  } else if(ie4 ||ie5) {
    this.obj             = document.all[id].style;
    this.obj.htm         = document.all[id];
  } else if(w3dom) {
    this.obj             = document.getElementById(id).style;
    this.obj.htm         = document.getElementById(id);
  }
  this.obj.left          = (w3dom) ? left + "px" : left;
  this.obj.top           = (w3dom) ? top  + "px" : top;
  this.obj.zIndex        = zindex;
  this.obj.visibility    = visibility;
  return this.obj;
}

function actionManager() {
    pageManager("load_page","content/main.html");
}

var page_timer = null;
function pageManager() {
  var args = pageManager.arguments;
  switch(args[0]) {
    case "load_page" :
	content.top = (w3dom) ? 120  + "px": 120;
      if(ie4) {
        document.frames["frameData"].document.location = args[1];
      }
      if(w3dom) {
        document.getElementById("frameData").src = args[1];
      }
      if(ns4) {
        content.load(args[1],page.width);
      }
    break;
    case "page_is_loaded" :
      if(ns4)
      clearTimeout(page_timer);
      page_timer = setTimeout("pageManager('display_page')",500);
    break;
    case "display_page" :
      if(ie4) {
        content.htm.innerHTML = document.frames['frameData'].document.body.innerHTML;
      } else if(w3dom) {
        content.htm.innerHTML = window.frames.frameData.window.document.getElementById('body').innerHTML;
      }
    break;
  }
}