try{
    xmlhttp = new XMLHttpRequest();
}catch(ee){
    try{
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }catch(e){
        try{
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        }catch(E){
            xmlhttp = false;
        }
    }
}

function extraiScript1(texto){
    var ini, pos_src, fim, codigo;
    var objScript = null;
    ini = texto.indexOf('<script', 0)
    while (ini!=-1){
        var objScript = document.createElement("script");
        pos_src = texto.indexOf(' src', ini)
        ini = texto.indexOf('>', ini) + 1;

        if (pos_src < ini && pos_src >=0){
            ini = pos_src + 4;
            fim = texto.indexOf('.', ini)+4;
            codigo = texto.substring(ini,fim);
            codigo = codigo.replace("=","").replace(" ","").replace("\"","").replace("\"","").replace("\'","").replace("\'","").replace(">","");
            objScript.src = codigo;
        }else{
            fim = texto.indexOf('</script>', ini);
            codigo = texto.substring(ini,fim);
            objScript.text = codigo;
        }
        document.body.appendChild(objScript);
        ini = texto.indexOf('<script', fim);
        objScript = null;
    }
}



function ajax1(url)
{
    req = null;
    // Procura por um objeto nativo (Mozilla/Safari)
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChange1;
        req.open("GET",url,true);
        req.send(null);
    // Procura por uma versão ActiveX (IE)
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChange1;
            req.open("GET",url,true);
            req.send();
        }
    }
}

function processReqChange1()
{
    // apenas quando o estado for "completado"
    if (req.readyState == 4) {
        // apenas se o servidor retornar "OK"
        if (req.status ==200) {
            document.getElementById("mostra_conteudo_ajax").innerHTML = req.responseText;
        } else {
            alert("Houve um problema ao obter os dados:" + req.statusText);
            alert(req.responseText);
        }
    }
        if(req.readyState == 4){extraiScript1(req.responseText);}

}

function ajax2(url)
{
    req = null;
    // Procura por um objeto nativo (Mozilla/Safari)
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChange2;
        req.open("GET",url,true);
        req.send(null);
    // Procura por uma versão ActiveX (IE)
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChange2;
            req.open("GET",url,true);
            req.send();
        }
    }
}

function processReqChange2()
{
    // apenas quando o estado for "completado"
    if (req.readyState == 4) {
        // apenas se o servidor retornar "OK"
        if (req.status ==200) {
            document.getElementById("d_seu_pedido").innerHTML = req.responseText;
        } else {
            alert("Houve um problema ao obter os dados:" + req.statusText);
            alert(req.responseText);
        }
    }
        if(req.readyState == 4){extraiScript1(req.responseText);}

}




//NAVEGAR 1:

function ObjAjax(){
  try {
    return new ActiveXObject("Microsoft.XMLHTTP");
  } catch(e) {
    try {
      return new ActiveXObject("Msxml2.XMLHTTP");
    } catch(ex) {
      try {
        return new XMLHttpRequest();
      } catch(exc) {
        return false;
      }
    }
  }
}

function extraiScript(texto){
    var ini, pos_src, fim, codigo;
    var objScript = null;
    ini = texto.indexOf('<script', 0)
    while (ini!=-1){
        var objScript = document.createElement("script");
        pos_src = texto.indexOf(' src', ini)
        ini = texto.indexOf('>', ini) + 1;

        if (pos_src < ini && pos_src >=0){
            ini = pos_src + 4;
            fim = texto.indexOf('.', ini)+4;
            codigo = texto.substring(ini,fim);
            codigo = codigo.replace("=","").replace(" ","").replace("\"","").replace("\"","").replace("\'","").replace("\'","").replace(">","");
            objScript.src = codigo;
        }else{
            fim = texto.indexOf('\<\/script>', ini);
            codigo = texto.substring(ini,fim);
            objScript.text = codigo;
        }
        document.body.appendChild(objScript);
        ini = texto.indexOf('<script', fim);
        objScript = null;
    }
}

function navegar(page,div){
  ajax = new ObjAjax();
  var div = document.getElementById(div);

  ajax.onreadystatechange = function(){
    //if(ajax.readyState == 1){div.innerHTML="<p class='ajax'>Aguarde, carregando...</p>";}
    if(ajax.readyState == 4){div.innerHTML=ajax.responseText;}
    if(ajax.readyState == 4){extraiScript(ajax.responseText);}
    //if(ajax.readyState == 4){alert(ajax.responseText);}
  }

  ajax.open("POST",page,true);
  ajax.send(null);
}


function ObjAjax4(){
  try {
    return new ActiveXObject("Microsoft.XMLHTTP");
  } catch(e) {
    try {
      return new ActiveXObject("Msxml2.XMLHTTP");
    } catch(ex) {
      try {
        return new XMLHttpRequest();
      } catch(exc) {
        return false;
      }
    }
  }
}

function extraiScript4(texto){
    var ini, pos_src, fim, codigo;
    var objScript = null;
    ini = texto.indexOf('<script', 0)
    while (ini!=-1){
        var objScript = document.createElement("script");
        pos_src = texto.indexOf(' src', ini)
        ini = texto.indexOf('>', ini) + 1;

        if (pos_src < ini && pos_src >=0){
            ini = pos_src + 4;
            fim = texto.indexOf('.', ini)+4;
            codigo = texto.substring(ini,fim);
            codigo = codigo.replace("=","").replace(" ","").replace("\"","").replace("\"","").replace("\'","").replace("\'","").replace(">","");
            objScript.src = codigo;
        }else{
            fim = texto.indexOf('\<\/script>', ini);
            codigo = texto.substring(ini,fim);
            objScript.text = codigo;
        }
        document.body.appendChild(objScript);
        ini = texto.indexOf('<script', fim);
        objScript = null;
    }
}

function navegar4(page,div){
  ajax = new ObjAjax4();
  var div = document.getElementById(div);

  ajax.onreadystatechange = function(){
    //if(ajax.readyState == 1){div.innerHTML="<p class='ajax'>Aguarde, carregando...</p>";}
    if(ajax.readyState == 4){div.innerHTML=ajax.responseText;}
    if(ajax.readyState == 4){extraiScript4(ajax.responseText);}
    //if(ajax.readyState == 4){alert(ajax.responseText);}
  }

  ajax.open("POST",page,true);
  ajax.send(null);
}