FrecciaDown= new Image(); 
FrecciaDown.src="img/freccia_menu_down.gif";

FrecciaUp= new Image(); 
FrecciaUp.src="img/freccia_menu_up.gif"; 

function ShowSubCat(livello){
	 if (document.getElementById("div"+livello).style.display!='block') {
	 document.getElementById("div"+livello).style.display = "block";
	 document.getElementById("Img"+livello).src='img/freccia_menu_up.gif';
	 }
	 else{
	 document.getElementById("div"+livello).style.display = 'none';
	  document.getElementById("Img"+livello).src='img/freccia_menu_down.gif';
	 }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_findObj(theObj, theDoc){
  var p, i, foundObj;
  if(!theDoc) theDoc = document;
  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length){
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];
  for (i=0; !foundObj && i < theDoc.forms.length; i++){
    foundObj = theDoc.forms[i][theObj];
  }
  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++){
    foundObj = findObj(theObj,theDoc.layers[i].document);
  }
  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);
  return foundObj;
}