$(function(){
				
				/**
					* �ʐ^�ؑ�
					*/
				$('img[@ref=photothumbnail]').mouseover(
								function(){
								    //$('img#photo').src = this.src.replace("photothumbnail", "photo");
								    $('img#photo').attr("src", this.src.replace("photothumbnail", "photo"));
								}
				);
});