dt = new Date();
m=dt.getMonth()+1;
if (m <= 1) greet="images/1gatsu.jpg"
else if (m <= 2) greet="images/2gatsu.jpg"
else if (m <= 3) greet="images/3gatsu.jpg"
else if (m <= 4) greet="images/4gatsu.jpg"
else if (m <= 5) greet="images/5gatsu.jpg"
else if (m <= 6) greet="images/6gatsu.jpg"
else if (m <= 7) greet="images/7gatsu.jpg"
else if (m <= 8) greet="images/8gatsu.jpg"
else if (m <= 9) greet="images/9gatsu.jpg"
else if (m <= 10) greet="images/10gatsu.jpg"
else if (m <= 11) greet="images/11gatsu.jpg"
else greet="images/12gatsu.jpg"
document.write("<a href=tour_guide/index.html><img src="+greet+" class=mgl10></a>");