Code

NodeListView.prototype.selectBox = function (box)
{
    for (var i = 0, l = this.boxes.length; i < l; i++)
    {
        if (this.boxes[i] === box)
        {
            this.draggedNode = this.items[i].clone();
            document.body.style.cursor = 'pointer';
            this.boxes[i].pen = '#3366CC';
            this.boxes[i].brush = { type: 'SolidBrush', color: 'rgba(51,102,204,0.2)' };
        }
        else
        {
            this.boxes[i].pen = 'transparent';
            this.boxes[i].brush = { type: 'SolidBrush', color: 'transparent' };
        }
    }
    this.invalidate();
};