// -------------------------- POPUP (set position)

function ppp(mylink, windowname, width, height, x, y) { 
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') href=mylink;
else href=mylink.href; 
var open = window.open(href, windowname, 'width=' + width + ',height='+ height + ',left=' + x + ',top=' + y + ', resizable=no, location=no, menubar=no'); 
open.focus();
setTimeout(function(){ open.close(); }, 120000);
return false; 
}

function ppp2(mylink, windowname, width, height, x, y) { 
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') href=mylink;
else href=mylink.href; 
var open = window.open(href, windowname, 'width=' + width + ',height='+ height + ',left=' + x + ',top=' + y + ', resizable=no, location=no, menubar=no'); 
open.focus();
// setTimeout(function(){ open.close(); }, 120000);
return false; 
}

// -------------------------- POPUP RANDOM POSITION TIMEOUT SHORT
var w = window.innerWidth;
var h = window.innerHeight;

function posX(){ return Math.ceil(Math.random() * w)-200 }
function posY(){ return Math.ceil(Math.random() * h) }

function pppR(mylink, windowname, width, height) { 
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') href=mylink;
else href=mylink.href; 
var open = window.open(href, windowname, 'width=' + width + ',height='+ height + ',left=' + posX() + ',top=' + posY() + ', resizable=no, location=no, menubar=no'); 
open.focus();
setTimeout(function(){ open.close(); }, 15000);
return false; 
}

// -------------------------- POPUP RANDOM POSITION TIMEOUT LONG
function pppRL(mylink, windowname, width, height) { 
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') href=mylink;
else href=mylink.href; 
var open = window.open(mylink, windowname, 'width=' + width + ',height='+ height + ',left=' + posX() + ',top=' + posY() + ', resizable=no, location=no, menubar=no'); 
open.focus();
setTimeout(function(){ open.close(); }, 180000);
return false; 
}

// -------------------------- POPUP RANDOM POSITION NO!TIMEOUT

function pppRNT(mylink, windowname, width, height) { 
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') href=mylink;
else href=mylink.href; 
var open = window.open(href, windowname, 'width=' + width + ',height='+ height + ',left=' + posX() + ',top=' + posY() + ', resizable=no, location=no, menubar=no'); 
open.focus();
//setTimeout(function(){ open.close(); }, 15000);
return false; 
}


function pppRP(windowname, width, height, x, y) { 
	var pages = ['http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=2',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=4',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=6',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=8',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=9',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=21',
	'http://people.math.harvard.edu/~ctm/home/text/others/shannon/entropy/entropy.pdf#page=27'
	];

	function rand(){ return Math.ceil(Math.random() * pages.length+1) }

	var open = window.open(pages[rand()], windowname, 'width=' + width + ',height='+ height + ',left=' + x + ',top=' + y + ', resizable=no, location=no, menubar=no'); 
	open.focus();
	// setTimeout(function(){ open.close(); }, 15000);
	return false; 
}

function pppRPvodoo(windowname, width, height, x, y) { 
var pages = ['../media/pdfs/vodoo_death.pdf',
'../media/pdfs/vodoo_death.pdf#page=2',
'../media/pdfs/vodoo_death.pdf#page=2',
'../media/pdfs/vodoo_death.pdf#page=2'
];


function rand(){ return Math.ceil(Math.random() * pages.length+1) }
var open = window.open(pages[rand()], windowname, 'width=' + width + ',height='+ height + ',left=' + x + ',top=' + y + ', resizable=no, location=no, menubar=no'); 
open.focus();
// setTimeout(function(){ open.close(); }, 15000);
return false; 
}


// -------------------------- REDIRECT OPENER (from popup)
function next(mylink){
    var mhref = mylink +'.html';
    window.opener.location.href = mhref;
}

function nextC(mylink){
    var mhref = mylink +'.html';
    window.opener.location.href = mhref;
    window.close();
}

// ------------------------ OPEN HIDDEN IFRAME

function openIframe(name) {
	document.getElementById(name).style.visibility = "visible";
}