var xmlhttp = null;
var res="";
function insereNovoRegisto(str1,str2,str3)
{
var url="/newsletter/index_ajax.php";
url=url+"?accao=1&username="+str1+"&email="+str2+"&formato=1&ajax=1&news_grupos="+str3;
url=url+"&sid="+Math.random();
pegaConteudo(url,".newsletter .texto");
}

function pegaConteudo(url,divelement) {
    var xmlhttp = null;
    
    try { 
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); 
    } catch (e) { 
        try { 
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
        } catch (E) { 
            xmlhttp = false; 
        } 
    } 

    if  (!xmlhttp && typeof  XMLHttpRequest != 'undefined' ) { 
        try  { 
            xmlhttp = new  XMLHttpRequest(); 
        } catch  (e) { 
            xmlhttp = false ; 
        } 
    }
    if (xmlhttp) {
    	
        xmlhttp.onreadystatechange=function(){
        	if (xmlhttp.readyState==1){
        		var loading =  '<div style="height:125px;"> <img style="height: 120px; width: 120px; margin: auto;" src="/temas/layout4/imgs/loading.gif"/><div>';
        		$(divelement).html(loading);
        	}else if ( xmlhttp.readyState == 4) { // Completo 
            	if ( xmlhttp.status == 200) { // resposta do servidor OK
            		res=xmlhttp.responseText;
            		$(divelement).html(res);
                } else { 
                    alert( "Problema: " + xmlhttp.statusText );  
                }
        	}    
        	
        }
        xmlhttp.open("GET", url ,true);
        xmlhttp.setRequestHeader('Content-Type','text/xml');
        xmlhttp.setRequestHeader('encoding','UTF-8');
        xmlhttp.send(null);
    }
}