function thanksG1(){
	var max = 15;
	
	url = new Array();
	url[0] = "http://eco-plaza.net/people/2009/05/22/20090522_kayayoichi.html";
	url[1] = "http://eco-plaza.net/people/2009/05/15/20090515_tochisakoatsumasa.html";
	url[2] = "http://eco-plaza.net/people/2009/04/14/20090414_kariyatetsu.html";
	url[3] = "http://eco-plaza.net/people/2009/03/15/20090315_akibaetsuko.html";
	url[4] = "http://eco-plaza.net/people/2009/02/23/20090223_louoshiba.html";
	url[5] = "http://eco-plaza.net/people/2009/02/23/20090223_noguchiken.html";
	url[6] = "http://eco-plaza.net/people/2009/02/12/20090212_asabakatsumi.html";
	url[7] = "http://eco-plaza.net/people/2009/01/28/20090128_fukasawanaoto.html";
	url[8] = "http://eco-plaza.net/people/2008/09/26/20080926_treehouse_opening_talk.html";
	url[9] = "http://eco-plaza.net/people/2008/07/02/post_3.html";
	url[10] = "http://eco-plaza.net/people/2008/06/26/20080626_npo2050.html";
	url[11] = "http://eco-plaza.net/people/2008/06/24/20080624_dr_matsuo.html";
	url[12] = "http://eco-plaza.net/people/2008/06/02/drkobayashi.html";
	url[13] = "http://eco-plaza.net/people/2008/05/31/20080531_ando.html";
	url[14] = "http://eco-plaza.net/people/2008/05/31/20080531_maathai.html";

  n = Math.floor(Math.random()*max);
	imgnum = n+1;
	
	document.write("<a href='" + url[n] + "'>");
	document.write("<img src='http://eco-plaza.net/images/top/menu_thanks_" + imgnum + ".jpg' alt='Thanks!' width='104' height='104' /></a>");
}