"""Renames selected layers with the layer id as layer name.
Script by Mitch Heynick 29.12.15"""
import rhinoscriptsyntax as rs

def RenameLayersID():
    layers=rs.GetLayers("Select layers to randomize names")
    if not layers: return
    for layer_name in layers:
        rs.RenameLayer(layer_name,rs.LayerId(layer_name))
RenameLayersID()