var once_per_browser=0
var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all

if (ns4)
{
	crossobj=document.layers.aviso;
	objpublicity=document.layers.publicidad;
	}
else if (ie4||ns6)
{
	crossobj= ie4||ns6 ? document.getElementById("aviso") : document.all.aviso;
	objpublicity= ie4||ns6 ? document.getElementById("publicidad") : document.all.publicidad;
	}

function showit()
{
	var e = window.event;
//	crossobj.style.top = document.body.scrollTop + e.clientY;
//	crossobj.style.top = document.body.scrollTop + (document.body.clientHeight / 2 );
	crossobj.style.top = document.body.scrollTop + (document.body.clientHeight / 3 );
	crossobj.style.left = screen.width / 2 - 175;

	if (ie4||ns6)
	{
		crossobj.style.visibility="visible";
	}
	else if (ns4)
	{
		crossobj.visibility="show";
	}
}

function closeit(){

	document.getElementById("aviso").style.visibility="hidden";

	if (ie4||ns6)
	crossobj.style.visibility="hidden"
	else if (ns4)
	crossobj.visibility="hide"
}

function showitPublicity()
{
	var e = window.event;
	objpublicity.style.top = document.body.scrollTop + (document.body.clientHeight / 3 );
	objpublicity.style.left = screen.width / 4 ;

	if (ie4||ns6)
	{
		objpublicity.style.visibility="visible";
	}
	else if (ns4)
	{
		objpublicity.visibility="show";
	}
}

function closepublicity(){
if (ie4||ns6)
objpublicity.style.visibility="hidden"
else if (ns4)
objpublicity.visibility="hide"
}