var req;
var op;

//cria div
//var div = document.createElement("div");
// Esrcrevendo
//div.innerHTML = "Escrevendo na div...";
//	div.appendChild(div);


function loadXMLDoc(url)
{
  req = null;
  if (window.XMLHttpRequest) 
  {
    req = new XMLHttpRequest();
    req.onreadystatechange = processReqChange;
    req.open("GET", url, true); 
    req.send(null);
  } else if (window.ActiveXObject)
  {
    try
	{
      req = new ActiveXObject("Msxml2.XMLHTTP.4.0");
    } catch(e)
	{
      try {
            req = new ActiveXObject("Msxml2.XMLHTTP.3.0");
          } catch(e)
		  {
             try
			 {
                req = new ActiveXObject("Msxml2.XMLHTTP");
             } catch(e)
			 {
		        try {
					   req = new ActiveXObject("Microsoft.XMLHTTP");
                     } catch(e)
					 {
						 req = false;
                     }
              }
          }
     }
     if (req)
	 {
       req.onreadystatechange = processReqChange;
       req.open("GET", url, true);
       req.send();
     }
  }
}

function processReqChange()
{
  if (req.readyState < 4)
  { 
    document.getElementById("aguarde").style.display = "block";
	document.getElementById("aguarde").className = "aparecer";
   	document.getElementById("aguarde").innerHTML="<embed src=imagens/aguarde.swf quality=high bgcolor=#FFFFFF  width=150 height=150 name=fundo align=middle margin=0 border=0 wmode=transparent>";
  }
  
  if (req.readyState == 4)
     {
	  	document.getElementById("aguarde").className = "esconder";	 

       if (req.status == 200)
	     {
        	   switch(op)
		   {
			   case "ls" : document.getElementById("listahorario").innerHTML = req.responseText;break;
               case "at" : document.getElementById("atualiza").innerHTML = req.responseText;break; 
		   }
         }else
		 {
            alert("Houve um problema ao obter os dados:\n" + req.statusText);
         }
     }
}

function atualiza(valor, opa){
this.op = opa;
loadXMLDoc("linhasporbairro.php?bairro="+valor);
}

function lsHorario(lin, opl){
this.op = opl;
loadXMLDoc("quadrohorario.php?linhas="+lin);
}