function createXMLHTTP() 
	{
		var ajax;
		try 
		{
			ajax = new ActiveXObject("Microsoft.XMLHTTP");
		} 
		catch(e) 
		{
			try 
			{
				ajax = new ActiveXObject("Msxml2.XMLHTTP");
				alert(ajax);
			}
			catch(ex) 
			{
				try 
				{
					ajax = new XMLHttpRequest();
				}
				catch(exc) 
				{
					 alert("Esse browser não tem recursos para uso do Ajax");
					 ajax = null;
				}
			}
			return ajax;
		}
	
	
		   var arrSignatures = ["MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0",
							    "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP",
							    "Microsoft.XMLHTTP"];
		   for (var i=0; i < arrSignatures.length; i++) 
		   {
				try 
				{
					var oRequest = new ActiveXObject(arrSignatures[i]);
					return oRequest;
				} 
				catch (oError) 
				{
			    }
		   }
		
			   throw new Error("MSXML is not installed on your system.");
	}


var http_request = false;
function makeRequest(url, parameters) {
  document.getElementById('atividades').innerHTML = "";
  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 = alertContents;
  http_request.open('GET', url + parameters, true);
  http_request.send(null);

}

function makePOSTRequest(url, 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 = alertContents;
  http_request.open('POST', url, true);
  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);
}


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


function get(url,n,nameobj,nameobj2,nameobj3) { 
  var i = 1;
  var conc = "";
  var poststr = "";
  var poststr2 = "";  
  var poststr3 = "";    
  while (i <= n){
	  //if (i > 1) { conc = "&"; }
	  //else { conc = ""; }
	  poststr = poststr + "&obj" + i +"=" + encodeURI( document.getElementById(nameobj + i).value );
	  poststr2 = poststr2 + "&idade" + i +"=" + encodeURI( document.getElementById(nameobj2 + i).value );	  
	  try {
	  poststr3 = poststr3 + "&datanasc" + i +"=" + encodeURI( document.getElementById(nameobj3 + i).value );	  	  
  	  } catch(err) {
  	  }	 
  	  i++;
  } 
  makeRequest(url, "?tip=insert&n=" + n + poststr + poststr2 + poststr3);
}