function esconde(){
			document.getElementById('Layer1').style.display = 'none';
		}
		
	setTimeout("esconde()",30000);

function getBrowserWidth(){
	if (window.innerWidth){
		return window.innerWidth;
	}else if (document.documentElement && document.documentElement.clientWidth != 0){
		return document.documentElement.clientWidth;
	}else if (document.body){
		return document.body.clientWidth;
	}else if (window.screen){
		return window.screen.width;
	}else if (document.body.scrollWidth){
		return document.body.scrollWidth;
	}else return 0;
}

	
	function posicao(){
		var obj = document.getElementById('Layer1');
		var posIni = 0;
		//alert(getBrowserWidth());
		if (getBrowserWidth()>770) posIni = (getBrowserWidth() - 770)/2;	
		obj.style.left = posIni + 50;
		obj.style.display = '';
	}