function extractUrlParams(){
	var t = location.search.substring(1).split('&');
	var f = [];
	for (var i=0; i<t.length; i++){
		var x = t[ i ].split('=');
		f[x[0]]=x[1];
	}
	return f;
}


function DetecteUA()
{
  var strUAgent = navigator.userAgent;
  strUAgent = strUAgent.toLowerCase();
  
  
  if ((strUAgent.indexOf("iphone") >=0))
  {
   return "iphone";
  }
  return "autre";
}


var type_UA;
type_UA = DetecteUA();
var myreferrer = document.referrer;



var myGet = extractUrlParams();
var s = myGet["s"] || sessionStorage.getItem('s') || null;
if (!s)
{
	if (type_UA != "autre")
	{
		window.location = "http://preroll.a4.tl/ouestfrance-immo/p_" + type_UA + ".php?referrera4s=" + myreferrer + "&urlad4s=" + document.URL;
	}
} else {
	sessionStorage.setItem('s', '1');
}