static/ext/src/draw/CompositeSprite.js
function() {
        var me = this,
            i = 0,
            items = me.items,
            surface = me.getSurface(),
            len = me.length;
        
        if (surface) {
            for (; i < len; i++) {
                surface.renderItem(items[i]);
            }
        }
        return me;
    }
function() {
        var me = this,
            i = 0,
            items = me.items,
            surface = me.getSurface(),
            len = me.length;
        
        if (surface) {
            for (; i < len; i++) {
                surface.renderItem(items[i]);
            }
        }
        return me;
    }
Force redraw of all sprites.