#btserv a {
	background-image:url(../imagens/topo_rodape/bt_servicos.png);
	float:left;
	width: 312px;
	height: 24px;
	background-repeat:no-repeat;
	background-position: 0px 0px;
}

#btserv a:hover {
	background-position: -314px 0px;
	}

#btimob a {
	background-image:url(../imagens/topo_rodape/bt_imobiliaria.png);
	float:left;
	width: 314px;
	height: 24px;
	background-repeat:no-repeat;
	background-position: 0px 0px;
}

#btimob a:hover {
	background-position: -314px 0px;
	}

#btconst a {
	background-image:url(../imagens/topo_rodape/bt_construcoes.png);
	float:right;
	width: 312px;
	height: 24px;
	background-repeat:no-repeat;
	background-position: 0px 0px;
}

#btconst a:hover {
	background-position: -312px 0px;
	}

#btmedida a {
	background-image:url(../imagens/topo_rodape/pormedida.png);
	float:left;
	width: 460px;
	height: 66px;
	background-repeat:no-repeat;
	background-position: 0px -69px;
}

#btmedida a:hover {
	background-position: 0px 0px;
}

#btassinatura a {
	background-image:url(../imagens/topo_rodape/porassinatura.png);
	float:left;
	width: 460px;
	height: 66px;
	background-repeat:no-repeat;
	background-position: 0px -69px;
}

#btassinatura a:hover {
	background-position: 0px -3px;
}