// AJAX

function get(NomeForm, div, url, obj) {
	// selecionar o formulario e fazer a varredura dos campos
	if (NomeForm == 'fcontato_rapido') {
		var poststr = query_campos(document.form_contato_rapido);
	} else if (NomeForm == 'fcontato') {
		var poststr = query_campos(document.form_contato);
	} 

	// apos varrer os campos, chama a funcao para envio dos dados
	makePOSTRequest(url, div, poststr);
}

var http_request = false;
function makePOSTRequest(url, div, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			// set type accordingly to anticipated content type
			//http_request.overrideMimeType('text/xml');
			http_request.overrideMimeType('text/html');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}

	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				//alert(http_request.responseText);
				result = http_request.responseText
				document.getElementById(div).innerHTML = result
			} else {
				alert('There was a problem with the request.');
			}
		}
	}

	http_request.open('POST', url, true);
	http_request.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
	http_request.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
	http_request.setRequestHeader("Pragma", "no-cache");
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}


// obtem variáveis dos formulários, certinho, necessario ter a tag "name" no campo
form = null;
function query_campos(form) {
	var queryString = "";
	for (var i = 0; i < form.elements.length; i++) {
		e = form.elements[i];
		if (e.type == "text" || e.type == "password" || e.type == "textarea" || e.type == "select-one" || e.type == "hidden") {
			queryString += e.name + "=" + escape(e.value) + "&";
		} else if (e.type == "checkbox" || e.type == "radio") {
			if (e.checked) {
				queryString += e.name + "=" + escape(e.value) + "&";
			}
		} else if (e.type == "select-multiple") {
			for (var j = 0; j < e.length; j++) {
				if (e.options[j].selected) {
					queryString += e.name + "=" + escape(e.options[j].value) + "&";
				}
			}
		}
	}
	return queryString;
}

function aguarde(div, acao){

	if(acao == 'on') {
		document.getElementById(div).innerHTML = '<center>Aguarde a confirma&ccedil;&atilde;o do envio.</center>';
		window.setTimeout("limpadiv('enviando')", 2000);
	}
}

function limpadiv(div) {
	document.getElementById(div).innerHTML = '';
}