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 ajax_carrega(url,div,query){
	var conteudo = document.getElementById(div);
	xmlhttp.open("post", url, true);
	xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlhttp.send(query);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4){
 			var texto = xmlhttp.responseText;
			texto = texto.replace(/\+/g," ");
			texto = unescape(texto);
			var conteudo = document.getElementById(div);
			conteudo.innerHTML = texto;
		}
	}
//	xmlhttp.send(null);
}

function createQuery(form) {
    var elements = form.elements;
    var pairs = new Array();
    for (var i = 0; i < elements.length; i++) {
        if ((name = elements[i].name) && (value = elements[i].value))
            pairs.push(name + "=" + encodeURIComponent(value));
    }
    return pairs.join("&");
}