code: function(){
  		var bd2 = {cell:[],cross:[],border:[],excell:[]};
  		for(var group in bd2){
  			for(var c=0;c<this[group].length;c++){
  				bd2[group][c] = this[group][c].getprops();
  			}
  		}
  		return bd2;
  	}
docs: --------------------------------------------------------------------------- bd.freezecopy()  盤面のオブジェクト値のみを取得する bd.compareData() 盤面のオブジェクト値のみを比較し異なる場合にcallback関数を呼ぶ ---------------------------------------------------------------------------