$(function(){

//classがheightJustifyの要素に対しての処理
	$(".heightJustify").each(function(){

	//対象要素設定
		var JustifyBox = $(this).children();

	//最大の高さの取得
		var Tallest = 0;
		JustifyBox.each(function(){
			var ThisHeight = $(this).height();
			if(ThisHeight > Tallest){
				Tallest = ThisHeight;
			};
		});

	//高さを設定
		JustifyBox.height(Tallest);

	});

});