function mostraMeio(loc,opc,area,categoria,item) {

  var atualiza=document.getElementById("atualiza");
  atualiza.innerHTML='<div id="carregando">carregando...</div>'

  ajax = ajaxInit();

  if (ajax) {
     ajax.open("GET", "site/"+ loc + "/opc/" + opc +"/area/" + area + "/categoria/" + categoria + "/item/" + item + "/", true);
     ajax.onreadystatechange = function () {
        if (ajax.readyState == 4) {
           if (ajax.status == 200) {
              atualiza.innerHTML = ajax.responseText;
           } else {
              alert(ajax.statusText);
           }
        }
     }
     ajax.send(null);
  }

}
function mostra(id) {
	if (document.getElementById(id).style.display=="none") {
		document.getElementById(id).style.display="block";
	} else {
    	document.getElementById(id).style.display="none";
	}
}
function update() {
http.open("GET", url , true);
http.onreadystatechange = handleHttpResponse;
http.send(null);
} 

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}