var newWindow = null;

function closeWin(){
  if (newWindow != null){
    if(!newWindow.closed)
      newWindow.close();
  }
}

function popUpWin(url, type, strWidth, strHeight){
  closeWin();
  type = type.toLowerCase();
  if (type == "fullscreen"){
    strWidth = screen.availWidth;
    strHeight = screen.availHeight;
  }
  var tools="";
  if (type == "standard"){
    tools = "resizable,toolbar=yes,location=yes,scrollbars=yes,menubar=yes,width="+strWidth+",height="+strHeight+",top=0,left=0";
  }
  if (type == "console" || type == "fullscreen"){
    tools = "resizable,toolbar=no,location=no,scrollbars=no,width="+strWidth+",height="+strHeight+",left=0,top=0";
  }
  newWindow = window.open(url, 'newWin', tools);
  newWindow.focus();
}

function doPopUp(e){
  //set defaults - if nothing in rel attrib, these will be used
  var t = "standard";
  var w = "800";
  var h = "600";
  //look for parameters
  attribs = this.rel.split(" ");
  if (attribs[1]!=null) {t = attribs[1];}
  if (attribs[2]!=null) {w = attribs[2];}
  if (attribs[3]!=null) {h = attribs[3];}
  //call the popup script
  popUpWin(this.href,t,w,h);
  //cancel the default link action if pop-up activated
  if (window.event){
    window.event.returnValue = false;
    window.event.cancelBubble = true;
  } 
  else if (e){
    e.stopPropagation();
    e.preventDefault();
  }
}

function findPopUps(){
  var popups = document.getElementsByTagName("a");
  for (i=0;i<popups.length;i++){
    if (popups[i].rel.indexOf("popup")!=-1){
      // attach popup behaviour
      popups[i].onclick = doPopUp;
      // add popup indicator
      if (popups[i].rel.indexOf("noicon")==-1){
	popups[i].style.backgroundImage = "url(pop-up.gif)";
	popups[i].style.backgroundPosition = "0 center";
	popups[i].style.backgroundRepeat = "no-repeat";
	popups[i].style.paddingLeft = "15px";
      }
      // add info to title attribute to alert fact that it's a pop-up window
      popups[i].title = popups[i].title + " [Opens in pop-up window]";
    }
  }
}

addEvent(window, 'load', findPopUps, false);