if(typeof window.getComputedStyle!="function"){ 
	window.getComputedStyle=function(elt,pseudoElt){
		return (elt!=null && typeof	elt.currentStyle=="object")?elt.currentStyle:null;
	}
}

if(!document.getElementById) { 
	document.getElementById=function(id) {
		if(document.getElementById && document.getElementById(id) && document.getElementById(id).style) {
			return document.getElementById(id); 
		} else if(document.all && document.all[id] && document.all[id].style) {
			return document.all[id]; 
		} else if (document.layers && document.layers[id]) {
			document.layers[id].style=document.layers[id];
			return document.layers[id];
		} else return null;
	}
}

function getBrowserHeight(){
	if (window.innerHeight){
		return window.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight != 0){
		return document.documentElement.clientHeight; 
	} else if (document.body){
		return document.body.clientHeight;
	}
	return 0;
}

function setPosition() {
	var thispage = document.getElementById('container');
	var pageHeight = parseInt(getComputedStyle(thispage,'').height);
	var browserHeight = (getBrowserHeight() - pageHeight)/2;
	if(browserHeight<0) browserHeight=0;
	thispage.style.marginTop = 0;
	thispage.style.top = browserHeight+"px";
}

function addEvent( obj, type, fn ){
	if (obj.addEventListener){
		obj.addEventListener( type, fn, false );
	}
	else if (obj.attachEvent){
		obj["e"+type+fn] = fn;
		obj[type+fn] = function(){ obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}
addEvent(window, 'load', setPosition);
addEvent(window, 'resize', setPosition); 

function show(i){
	var el = document.getElementById('msg'+i);
	el.style.visibility = 'visible';
}

function hide(i){
	var el = document.getElementById('msg'+i);
	el.style.visibility = 'hidden';
}

var timer;
var current;

function show2(i, div){
	div.style.zIndex = 500;
	if(current!=i)
		timer = setTimeout("show("+i+")",1000);	
	else show(i);
	current = i;
}

function hide2(i, div){
	div.style.zIndex = 10;
	hide(i);
	clearTimeout(timer);
}