function mostraLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

// ---- mouseover ----------------------
function troca(nome,nova){
	document[nome].src=nova;
	}

function popup(link,largura,altura){
	w=',width=' +largura;
	h=',height='+altura;
	windowfeatures='status=no,menubar=no,scrollbars=no,resizable=no' +w + h;
	Janela=window.open(link,"janelin",windowfeatures);
	Janela.focus();
	}

// ---- conta palavra ----------------------
function cnt(w,x){
var y=w.value;
var r = 0;
a=y.replace('\n',' ');
a=a.split(' ');
for (z=0; z<a.length; z++) {if (a[z].length > 0) r++;}
x.value=r;
}


// ----  ----------------------
// ----  ----------------------
// ----  ----------------------
// ----  ----------------------