// JavaScript Document
<!--
var imgMax  = 6; //セットする画像の枚数。
var imgRand = Math.floor(Math.random() * imgMax);

if(imgRand == 0)       document.write('<img src="http://otsuka-clinic.com/img/header_img.jpg" width="880" height="150" style="margin:0;padding:0;" />');
else if(imgRand == 1)  document.write('<img src="http://otsuka-clinic.com/img/header_img01.jpg" width="880" height="150" style="margin:0;padding:0;" />');
else if(imgRand == 2)  document.write('<img src="http://otsuka-clinic.com/img/header_img02.jpg" width="880" height="150" style="margin:0;padding:0;" />');
else if(imgRand == 3)  document.write('<img src="http://otsuka-clinic.com/img/header_img03.jpg" width="880" height="150" style="margin:0;padding:0;" />');
else if(imgRand == 4)  document.write('<img src="http://otsuka-clinic.com/img/header_img04.jpg" width="880" height="150" style="margin:0;padding:0;" />');
else if(imgRand == 5)  document.write('<img src="http://otsuka-clinic.com/img/header_img05.jpg" width="880" height="150" style="margin:0;padding:0;" />');
//-->