function xGetCookieVal (offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1) { endstr = document.cookie.length; }
	return unescape(document.cookie.substring(offset, endstr));
}

function xGetCookie (name) {  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) {    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg) return xGetCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}
// name, value, expires, path, domain, secure
function xSetCookie (name, value) {
	var argv = xSetCookie.arguments;  
	var argc = xSetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}

function xGetElementById(e) {
  if(typeof(e)!='string') return e;
  if(document.getElementById) e=document.getElementById(e);
  else if(document.all) e=document.all[e];
  else if(document.layers) e=xLayer(e);
  else e=null;
  return e;
}
function xLayer(id,root) { // only for nn4
  var i,layer,found=null;
  if (!root) root=window;
  for(i=0; i<root.document.layers.length; i++) {
    layer=root.document.layers[i];
    if(layer.id==id) return layer;
    if(layer.document.layers.length) found=xLayer(id,layer);
    if(found) return found;
  }
  return null;
}
function xDef() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') return false;}
  return true;
}
function xShow(e) {
  if(!(e=xGetElementById(e))) return;
  if(e.style && xDef(e.style.visibility)) e.style.visibility='visible';
  else if(xDef(e.visibility)) e.visibility='show';
}
function xHide(e) {
  if(!(e=xGetElementById(e))) return;
  if(e.style && xDef(e.style.visibility)) e.style.visibility='hidden';
  else if(xDef(e.visibility)) e.visibility='hide';
}
var produtos = "";