Tree Checkbox Event

Why when I click the tree sign it's changing the checkbox value at the same time? I only want the checkbox value to change when I click the checkbox??

This also serves as a good tree example with data, that I struggled to find on the support forum or in the documentation.

var Cattree = new Array;
var CattreeText = new Array;
var CattreeValue = new Array;//Checkbox code

Cattree[9] = [16,11,13,12];

CattreeText[16] = 'ACCESSORIES';
CattreeText[11] = 'BATTERIES';
CattreeText[13] = 'BRAKE PADS';
CattreeText[12] = 'SPARK PLUGS';

CattreeValue[16] = 'false';//Checkbox code
CattreeValue[11] = 'false';//Checkbox code
CattreeValue[13] = 'false';//Checkbox code
CattreeValue[12] = 'false';//Checkbox code


Cattree[10] = [15,14];
CattreeText[15] = 'GLOVES';
CattreeText[14] = 'HELMETS';

CattreeValue[15] = 'false';//Checkbox code
CattreeValue[14] = 'false';//Checkbox code

Cattree[0] = [9,10,18];
CattreeText[9] = 'PARTS';
CattreeText[10] = 'CLOTHING';


CattreeValue[9] = 'false';//Checkbox code
CattreeValue[10] = 'false';//Checkbox code
CattreeValue[18] = 'false';//Checkbox code



var MyTreeCheckboxCat = AW.Tree.Item.subclass(); 
MyTreeCheckboxCat.create = function(){ 
AW.Templates.Checkbox.create.call(this); 
}  
    
var treeCat = new AW.UI.Tree;
treeCat.setItemText(CattreeText);
treeCat.setViewCount(function(i){return Cattree[i] ? Cattree[i].length : 0});
treeCat.setViewIndices(function(i){return Cattree[i]});
treeCat.setSize(280,80);
treeCat.setItemTemplate(new MyTreeCheckboxCat); treeCat.setItemValue(CattreeValue);       

treeCat.onItemClicked = function(event, index){clickCat(index);}
document.write(treeCat);

Due to the checkbox being loaded as a template into the AW.UI.Tree, it appears the tree sign and the Checkbox share the same value...?

Can they be separated, this is quite an important factor...

Bump