$(document).ready(function(){
	
	if(0 == $('div#rightbar > div > a > img[src^=http://japan.techinsight.jp/wp-content/themes/techinsght/images/ad/tottori_250_250.jpg?]').size()){
		var img = $('div#rightbar > a > img[src^=http://japan.techinsight.jp/wp-content/themes/techinsght/images/ad/tottori_250_250.jpg?]');
		if(0 < img.size()){
			var a = img.parent().get(0);
			a.next().html("<div style='height:20px;'></div>");
		}
	}
	
	
});