var http_request = false;

    function carrega_pagina(url) {

        http_request = false;

        if (window.XMLHttpRequest) { 
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
   
            }
        } else if (window.ActiveXObject) {
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {
            alert('Nao :( Funciona para seu brawser');
            return false;
        }
        http_request.onreadystatechange = alertas;
        http_request.open('GET', url, true);
        http_request.send(null);

    }

    function alertas() {

        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
				document.getElementById("Mostra").innerHTML=http_request.responseText;

            } else {
                alert('Esta com problemas');
            }
        }

    }