var material = new Array;
material[0] = "div_visual_1.jpg";
material[1] = "div_visual_2.jpg";
material[2] = "div_visual_3.jpg";
material[3] = "div_visual_4.jpg";
material[4] = "div_visual_5.jpg";


$(function(){
  var seed = Math.floor(material.length * Math.random());
  var path = "/site/htdocs/common/visual/" + material[seed];
  $("#visual img").attr("src",path);
  $("#calendar th:eq(5)").css("color", "#0000FF");
  $("#calendar th:eq(6)").css("color", "#FF0000");
});