// Browser Window Size and Position
// copyright Stephen Chapman, 3rd Jan 2005, 8th Dec 2005
// you may copy these functions but please keep the copyright notice as well

function pageWidth() {return window.innerWidth != null? window.innerWidth : document.documentElement && document.documentElement.clientWidth ?       document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null;} 
function pageHeight() {return  window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ?  document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null;} 
function posLeft() {return typeof window.pageXOffset != 'undefined' ? window.pageXOffset :document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0;} 
function posTop() {return typeof window.pageYOffset != 'undefined' ?  window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0;} 
function posRight() {return posLeft()+pageWidth();} 
function posBottom() {return posTop()+pageHeight();}
	
var curw=0, curh=0;
var imagetweak_stat_seconds = 0;

var defaultFile = 'bg.jpg';

function setBG(fileName) {
	if (fileName.length < 1) fileName = defaultFile;
	else defaultFile = fileName;
	
	curw = pageWidth();
	curh = pageHeight();

	curw = (curw + 64) - (curw % 64);
	curh = (curh + 64) - (curh % 64);
	document.getElementById("bg").style.backgroundImage = 'url(/bg.php?img='+ fileName +'&w='+ curw +'&h='+ curh +')';
}

//window.onload = setBG;
window.onresize = setBG;