org.ametys.web.helper.ExplorerTree.TreeFilter = Ext.extend (Ext.tree.TreeFilter, {
	clear : function(node)
	{
		node = node || this.tree.getRootNode();
        var t = this.tree;
	    var af = this.filtered;
	    for(var id in af)
	    {
	        if(typeof id != "function")
	        {
	            var n = af[id];
	            if (n && n.getOwnerTree() && n.getPath('name').indexOf(node.getPath('name')) == 0)
	    	    {
	            	delete af[id];
	                n.ui.show();
	            }
	        }
	    }
	}
});