$(document).ready(function(){
	$("a.photo").mouseover(function () {
      $("ul.tab").css("background-image","url(http://www.illust.image-eye.com/img/tab_navi_hover.gif)");
    }).mouseout(function() {
	  $("ul.tab").css("background-image","url(http://www.illust.image-eye.com/img/tab_navi.gif)");
	});				   
});