$(document).ready(function(){
  ChangeHeaderImg();
});

function ChangeHeaderImg(){
  var d  = new Date();
  var hour  = d.getHours();
  var img_src = '';

  if ( hour < 5 ) {
    img_src = '/radio/images/header/img_time3.jpg';
  } else if ( hour < 10 ) {
    img_src = '/radio/images/header/img_time4.jpg';
  } else if ( hour < 16 ) {
    img_src = '/radio/images/header/img_time1.jpg';
  } else if ( hour < 19 ) {
    img_src = '/radio/images/header/img_time2.jpg';
  } else {
    img_src = '/radio/images/header/img_time3.jpg';
  }

  $("#title").attr("src",img_src);
//  $("#title").attr("title",hour);

}

/*
 * ラジオのヘッダー画像変更
 * 
 * 5時～10時
 * 	/radio/images/header/img_time4.jpg
 * 10時～16時
 * 	/radio/images/header/img_time1.jpg
 * 16～19時
 * 	/radio/images/header/img_time2.jpg
 * 19時～5時
 * 	/radio/images/header/img_time3.jpg
*/