// JavaScript Document
           
/**
 *
**/


        var oXmlHttp =  false;
        if (window.XMLHttpRequest) {
        oXmlHttp = new XMLHttpRequest();
        } else if (window.ActiveXObject) {
        try {
        oXmlHttp = new ActiveXObject("MSXML2.XMLHTTP");
        } catch (exception1) {
        try {
        oXmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (exception2) {
        oXmlHttp = false;
        }
        }
        }
              
                
/***
*   Enviar dados GET
***/
        function checarLogin(pageId, divId){
        var oLogin = document.getElementById("loginValue").value;
        var sNovo = new Date();
        var sTempo = sNovo.getMilliseconds();
        var extenso = "?tempo=" + sTempo + "&login=" + oLogin;
        oXmlHttp.open("get", pageId + extenso, true);
        oXmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=iso-8859-1");
        oXmlHttp.onreadystatechange = function () {
      
        if (oXmlHttp.readyState == 1) {
        
        }else if(oXmlHttp.readyState == 4){
        if (oXmlHttp.status == 200) {
        
        setLogin(oXmlHttp.responseText, divId);
        } else {
        
        setLogin("An error occurred: " + oXmlHttp.statusText);
        }
        }
        };
        oXmlHttp.send(null);
        }
        
         
        function setLogin(sText, divId) {
        var divGrupo = document.getElementById(divId);
        divGrupo.innerHTML = sText;
        }
        
        function limpar(){
        var oEmail = document.getElementById("email");
        oEmail.value = "";
        }