function colocaLoad(){
	leftx 	= (document.documentElement.clientWidth - document.getElementById('loader').style.width)/2;
	topx 	= (document.documentElement.clientHeight - document.getElementById('loader').style.height)/2;
	document.getElementById('loader').style.position 	= "fixed";
	document.getElementById('loader').style.textAlign 	= "center";
	document.getElementById('loader').style.left 		= leftx+"px";
	document.getElementById('loader').style.top		= topx+"px";
	
}

function tiraLoader(){
		document.getElementById('carregando').style.display = 'none';
		document.getElementById('loader').style.display = 'none';
}