var win=null;

  function NewWindow(mypage,myname,w,h,scroll,pos) {

   if(pos=="random") {
      LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;
      TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;
   }
   if(pos=="center") {
      LeftPosition=(screen.width)?(screen.width-w)/2:100;
      TopPosition=(screen.height)?(screen.height-h)/2:100;
   }
   else if((pos!="center" && pos!="random") || pos==null) { LeftPosition=0; TopPosition=20 }
  settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
   win=window.open(mypage,myname,settings);
   }
   
   
   
var ie= ((document.all)&&(!document.layers)) ? true : false;
var ns= ((document.layers)&&(!document.getElementById)) ? true : false;
var moz= ((document.getElementById)&&(!document.all)) ? true : false;

function show(div){
	if(ie) {document.all[div].style.visibility="visible";}
	if(ns) {document.layers[div].visibility="show";}
	if(moz) {document.getElementById(div).style.visibility="visible";}
}

function hide(div){
	if(ie) (document.all[div].style.visibility="hidden")
	if(ns) (document.layers[div].visibility="hide")
	if(moz) (document.getElementById(div).style.visibility="hidden")
}