// JavaScript Document
// copyright Stephen Chapman, 3rd Jan 2005, 8th Dec 2005
// you may copy these functions but please keep the copyright notice as well

// Browser Window Size and Position
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();
}

// Cross Browser DOM
var aDOM = 0, ieDOM = 0, nsDOM = 0; 
var stdDOM = document.getElementById;
if (stdDOM) aDOM = 1; 
else {
	ieDOM = document.all; 
	if (ieDOM) aDOM = 1; 
	else {
		var nsDOM = ((navigator.appName.indexOf('Netscape') != -1) && (parseInt(navigator.appVersion) ==4)); 
		if (nsDOM) aDOM = 1;
	}
}

function xDOM(objectId, wS) {
	if (stdDOM) return wS ? document.getElementById(objectId).style: document.getElementById(objectId);
	if (ieDOM) return wS ? document.all[objectId].style: document.all[objectId];
	if (nsDOM) return document.layers[objectId];
}                  

// Change objects attributes
function setObjVis(objectID,vis) {
	var objs = xDOM(objectID,1); 
	objs.visibility = vis;
} 

function moveObjTo(objectID,x,y) {
	var objs = xDOM(objectID,1); 
	objs.left = x + 'px';
	objs.top  = y + 'px';
}