var once_per_browser=0
var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all
var fl=1
 
if (ns4)
crossobj=document.layers.pantalla
else if (ie4||ns6)
crossobj=ns6? document.getElementById("pantalla") : document.all.pantalla
 
function closeit(){
if (ie4||ns6)
crossobj.style.visibility="visible"
else if (ns4)
crossobj.visibility="show"
}
 
function get_cookie4(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie4.length > 0) {
    offset = document.cookie4.indexOf(search)
    if (offset != -1) { // if cookie4 exists
      offset += search.length
      // set index of beginning of value
      end = document.cookie4.indexOf(";", offset);
      // set index of end of cookie4 value
      if (end == -1)
         end = document.cookie4.length;
      returnvalue=unescape(document.cookie4.substring(offset, end))
      }
   }
  return returnvalue;
}
 
function showornot(){
if (get_cookie4('postdisplay')==''){
showit()
document.cookie4="postdisplay=yes"
}
}
 
function showit(){
if (ie4||ns6)
crossobj.style.visibility="hidden"
else if (ns4)
crossobj.visibility="hide"
}

function vishidd(){
	if(fl==1){
	closeit()
	fl=0
	}else{
		showit()
		fl=1
		
	}
}
 
if (once_per_browser)
showornot()
else
showit()