/*_______________________________________________________

	Randam Image JavaScpipt
	written by Toyohiro Sugita
	ST Creative Directions.
	sugitoyo@stcd.jp
	Last updated on 2005.10.01
	 
________________________________________________________*/

var imgMax  = 3; 
var imgRand = Math.floor(Math.random() * imgMax);

if(imgRand == 0)       document.write('<img src="img/topmain01.jpg" width="742" height="240" alt="Seiritsu Shoko Corporation.">');
else if(imgRand == 1)  document.write('<img src="img/topmain02.jpg" width="742" height="240" alt="Seiritsu Shoko Corporation.">');
else if(imgRand == 2)  document.write('<img src="img/topmain03.jpg" width="742" height="240" alt="Seiritsu Shoko Corporation.">');