function AjaxTabsID(ligacao, id, contentdiv) {

    this.ligacao = ligacao;
    this.id = id;
    this.contentdiv = contentdiv;

    var xmlObj = criarXMLObj();

    xmlObj.open("GET", this.ligacao + "?id=" + this.id + "&d=" + this.contentdiv);
    xmlObj.send(null);

    document.getElementById(contentdiv).innerHTML = "<img src='/Imagens/Icons/loading.gif' alt='A carregar conteúdo...' />  A carregar conteúdo...";


    xmlObj.onreadystatechange = function () {
        if (xmlObj.readyState == 4) {
            document.getElementById(contentdiv).innerHTML = xmlObj.responseText;

        }
    }
}