//Variáveis globais
var _loadTimer	= setInterval(__loadAnima,18);
var _loadPos	= 0;
var _loadDir	= 2;
var _loadLen	= 0;

//Anima a barra de progresso
function __loadAnima(){
	var elem = document.getElementById("barra_progresso");
	if(elem != null){
		if (_loadPos==0) _loadLen += _loadDir;
		if (_loadLen>32 || _loadPos>79) _loadPos += _loadDir;
		if (_loadPos>79) _loadLen -= _loadDir;
		if (_loadPos>79 && _loadLen==0) _loadPos=0;
		elem.style.left		= _loadPos;
		elem.style.width	= _loadLen;
		
		setContent();
	}
}

//Esconde o carregador
function __loadEsconde(){
	this.clearInterval(_loadTimer);
	var objLoader				= document.getElementById("carregador_pai");
	var objLoader2				= document.getElementById("teste");
	objLoader.style.display		="none";
	objLoader.style.visibility	="hidden";
	objLoader2.style.display	="none";
	objLoader2.style.visibility	="hidden";
}

// adicionei para centralizar.		
		function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setContent() {
			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var contentElement = document.getElementById('carregador_pai');
					var contentHeight = contentElement.offsetHeight;
					if (windowHeight - contentHeight > 0) {
						contentElement.style.position = 'relative';
						contentElement.style.top = ((windowHeight / 2) - (contentHeight / 2)) + 'px';
					}
					else {
						contentElement.style.position = 'static';
					}
				}
			}
		}
		/*
		window.onload = function() {
			setContent();
		}
		window.onresize = function() {
			setContent();
		}
		*/