// JavaScript Document
// ヘッダーの背景が変わる
myTime=(new Date()).getHours();
if(myTime>=6 && myTime<10){
myBack="./images/top-morning_image.gif";
}else if(myTime>=10 && myTime<17){
myBack="./images/top-daytime_image.gif";
}else if(myTime>=17 && myTime<19){
myBack="./images/top-evening_image.gif";
}else if(myTime<19 || myTime>=6){
myBack="./images/top-night_image.gif";
}
document.write("<div id='header'><img width='950px' height='193px' src='"+myBack+"'></div>");