function mostra_log_form(){
	login=document.getElementById('form_log');
	if(login.style.visibility=='visible'){
		login.style.visibility='hidden';
	} else {
		login.style.visibility='visible';
	}
}

function mais_pd(){	
	window.open("mais_down.php","","width=280,height=400,top=10,left=100,resizable=no");
}
function mais_ut(){	
	window.open("mais_ultimas.php","","width=280,height=400,top=10,left=100,resizable=no");
}
function mais_bx(){	
	window.open("mais_baixadas.php","","width=280,height=400,top=10,left=100,resizable=no");
}
function muda_foto(){
	document.getElementById('form3').style.visibility='visible';
}