function openservicos(){
    document.getElementById('menuservicos').style.display='block';
    document.getElementById('menureferencias').style.display='none';
    document.getElementById('tdservicos').style.backgroundColor='#779717';
    document.getElementById('tdreferencias').style.backgroundColor='';
    document.getElementById('tdservicos').onmouseout="";
}
function openreferencias(){
    document.getElementById('menuservicos').style.display='none';
    document.getElementById('menureferencias').style.display='block';
    document.getElementById('tdservicos').style.backgroundColor='';
    document.getElementById('tdreferencias').style.backgroundColor='#779717';
    document.getElementById('tdreferencias').onmouseout="";
}
function mudaimagem(eu){
    var nomeimagem = eu.src;
    var imagemcentro = nomeimagem.replace('_thumb.jpg','.jpg')
    document.getElementById('imagemcentro').src=imagemcentro;
    document.getElementById('textocentro').innerHTML =eu.title;
}