Open certain category - XML Menu accordion

[Only_Dust]

I not a developer, so I bought a menu, which I saw in flashden.

a menu xml accordion.
http://flashden.net/files/21673/index.html

My problem is the following, the menu opens all, I just would like to open certain category.

In that way:
in my URL I have a param &IDCategoria=2660&, I can take this param, but my whole menu opens, all categories, not just this particular category.

Can anyone help me?
AS.

stop();
// subitems
var xmlItems = xmlRoot.childNodes
// total subitems
var total = xmlItems.length
// todos items
var itemList = []
//----------------------------------------------
//catch the url param
import flash.external.*; 
import QueryString.as;
var myPath:QueryString = new QueryString();
assignVariables();
//------------------------------------------------
function assignVariables() {
      if (myPath.parameters.Y) {
      idCategoria_txt.text = unescape("IDCategoria="+myPath.parameters.IDCategoria);

for (i=0; i<total; i++){
		// Attaching menu
		box.attachMovie("item", "item" + i, i)
		itemList* = box["item"+i]
		itemList*.xmlRoot = xmlItems*
		itemList*.separation = separation
		itemList*.tabulation = tabulation
		itemList*.subItemAutoClose = subItemAutoClose
		itemList*.itemHeight = itemHeight
		itemList*.itemWidth = itemWidth
		itemList*.light = light
		//itemList*.buttonColor = buttonColor
		//itemList*.rollOverColor = rollOverColor
		itemList*.arrowColor = arrowColor
		itemList*.rollOverArrowColor = rollOverArrowColor
		itemList*.TextColor = TextColor
		itemList*.rollOverText = rollOverText
		itemList*.openEase = openEase
		itemList*.closeEase = closeEase
		itemList*.rollOutFade = rollOutFade
		itemList*.openAll = openAll
		itemList*.openID = openID
}

//botões menu
button.onRelease = function(){
	if (link){
		getURL(xmlRoot.attributes.url+"&Y="+myPath.parameters.Y, "_self")
	}
}
button.onReleaseOutside = function(){
	if (link){
		getURL(xmlRoot.attributes.url+"&Y="+myPath.parameters.Y, "_self")
	}
}
button.onRollOver=function(){
	if (!openBox){
		over = true
	}
}
button.onRollOut=function(){
	if (!openBox){
		over = false
	}
}

//cores
color.setRGB(buttonColor)
color = new Color (button.over)
color = new Color (Arrow.color)
color.setRGB(arrowColor)
color = new Color (Arrow.over)
color.setRGB(rollOverArrowColor)
// nome do item CAT
cat.text = xmlRoot.attributes.cat
id_txt.text = xmlRoot.attributes.id
levels_txt.text = xmlRoot.attributes.level
// máscara
box.setMask(mask)
// sem submenu
if (total<1){
	link = true
	Arrow._visible=false
}
if (!light){
	button.light._visible=false
}
mask._height = 0
button._x = button._y = 0

mask.onEnterFrame=function(){
	cursor._x=_xmouse
	cursor._y=_ymouse
	button._height = itemHeight
	button._width = itemWidth
	box._y = mask._y = button._height  + separation
	mask._width = button._width*tabulation/5

	if (openBox || myPath.parameters.IDCategoria){
		mask._height += (targetSize - mask._height)/openEase
		Arrow._rotation += (-90 - Arrow._rotation)/openEase
		box._x = mask._x += (tabulation - mask._x)/openEase
		teste_txt.text = "Categoria aberta";
		teste_txt.textColor = 0xFF0099;
	}
	
	else {
		mask._height += (0 - mask._height)/closeEase
		Arrow._rotation += (0 - Arrow._rotation)/closeEase
		box._x = mask._x += (0 - mask._x)/closeEase
	}
	if (over){
		cat.textColor = rollOverText
		if (button.over._alpha<100){
			button.over._alpha +=50
		}
	} else {
		cat.textColor = TextColor
		if (button.over._alpha>0){
			button.over._alpha -= rollOutFade
		}
	}
	Arrow.over._alpha = button.over._alpha
	// menu
	for (i=1; i<=total; i++){
		// menu embaixo do outro
		
		itemList*._y = itemList[i-1]._y + itemList[i-1].mask._height + itemList[i-1].button._height + separation
		targetSize = itemList[i-1]._y + itemList[i-1].mask._height + itemList[i-1].button._height + separation
		if (!openBox && !openAll){
			itemList[i-1].openBox=false
			itemList[i-1].over=false
		}
		
		// abrir todos
		if (openAll && openBox){
			itemList[i-1].openBox=true
			itemList[i-1].over=false
			if (!itemList[i-1].link){
				itemList[i-1].over=true
			
			}
		}
	}
}

onMouseDown = function (){
	for (i=0; i<total; i++){
		if (itemList*.button.hitTest(cursor)){
			showCurrent(itemList*)
		}
	}
}
// botão clicado
showCurrent=function(current){
	for (i=0; i<total; i++){
		if (itemList*!=current){
			if (subItemAutoClose){
				itemList*.openBox=false
			}
			if (total > 0){
				itemList*.over = false
			}
		} else {
			// se tiver submenu
			if (total>0){
				if (itemList*.openBox){
					if (!openAll){
						itemList*.openBox=false
					}
				} else {
		
					itemList*.openBox=true
				}
			}
		}
	}
}
// fechando a função assignVariables if Y parameter exists
}
}

If somebody wanna help, I´ll send the .fla

Sorry about my english.