function mostraSite(exibir){
    var img = document.form1.btsite;
    var lnk = document.getElementById("lnksite");
    
    //alert('aqui');
    if (exibir == '0') {
        img.src = "img/bt_site_on.png";
        lnk.href = "javascript:mostraSite(1);";
        lnk.title = "Ver conteúdo";
        document.getElementById("divSite").style.visibility="hidden";
        document.getElementById("divSite").style.display = "none";
        document.getElementById("divRodape").style.visibility = "hidden";
        document.getElementById("divRodape").style.display = "none";
        //img.style.visibility="hidden";
        //alert('sai');
        //img.src = '';
    } else {
        img.src = "img/bt_site_off.png";
        lnk.href = "javascript:mostraSite(0);";
        lnk.title = "Ver empreendimento";
        document.getElementById("divSite").style.visibility = "visible";
        document.getElementById("divSite").style.display = "block";
        document.getElementById("divRodape").style.visibility = "visible";
        document.getElementById("divRodape").style.display = "block";
        //img.style.visibility="visible";
        //img.src = imagem;
    }    
    
}