function showDiv(){
		var obj = document.getElementById('bigban');
		obj.style.display = 'block';
	}
	
	function fechar()
	{
		document.getElementById("bigban").style.display = "none";      
	}
	
	
	function showDiv2(){
	var obj = document.getElementById('floatban');
	obj.style.display = 'block';
	}
	
	function fechar2()
	{
		document.getElementById("floatban").style.display = "none";      
	}