function ajaxRequest(){
 var activexmodes=["Msxml2.XMLHTTP", "Microsoft.XMLHTTP"] //activeX versions to check for in IE
 if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
  for (var i=0; i<activexmodes.length; i++){
   try{
    return new ActiveXObject(activexmodes[i])
   }
   catch(e){
    //suppress error
   }
  }
 }
 else if (window.XMLHttpRequest) // if Mozilla, Safari etc
  return new XMLHttpRequest()
 else
  return false
}

function loadData(parameters, page, target) {
	document.getElementById(target).innerHTML="<p class=\"loading\"><img src=\"assets/loading.gif\"/><br/>Carregando...</p>"
	var mypostrequest=new ajaxRequest()
	mypostrequest.onreadystatechange=function() {
	 if (mypostrequest.readyState==4){
	  if (mypostrequest.status==200 || window.location.href.indexOf("http")==-1){
	   document.getElementById(target).innerHTML=mypostrequest.responseText
	  }
	  else{
	   document.getElementById(target).innerHTML="<p class=\"erro\">Ops! Ocorreu um erro!<br/>Recarregue a p&aacute;gina e tente novamente.<br/>"+"Erro numero "+mypostrequest.status+"</p>"
	  }
	 }
	}
	mypostrequest.open("POST", page, true)
	mypostrequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded")
	mypostrequest.send(parameters)
}