function resizePage() {
	
	var conteudo_height = document.getElementById('conteudo_main').offsetHeight;
	var main_height = document.getElementById('main').offsetHeight;
	
	if (conteudo_height < main_height) {
		document.getElementById('conteudo_main').style.height = main_height - 175 + "px";
	}
}

function changeImg(id,name){
	document.getElementById(id).src = "../imgs/" + name;
}

function fechaDiv (id){
	document.getElementById(id).style.display = "none";
}