function displayImage(){
	imgs = new Array();
	imgs[0] = "http://www.kashiwadaisuke.com/topimage/topimage1.jpg";
	imgs[1] = "http://www.kashiwadaisuke.com/topimage/topimage2.jpg";
	imgs[2] = "http://www.kashiwadaisuke.com/topimage/topimage3.jpg";
	imgs[3] = "http://www.kashiwadaisuke.com/topimage/topimage4.jpg";
	imgs[4] = "http://www.kashiwadaisuke.com/topimage/topimage5.jpg";
	imgs[5] = "http://www.kashiwadaisuke.com/topimage/topimage6.jpg";
	imgs[6] = "http://www.kashiwadaisuke.com/topimage/topimage7.jpg";
	imgs[7] = "http://www.kashiwadaisuke.com/topimage/topimage8.jpg";
	imgs[8] = "http://www.kashiwadaisuke.com/topimage/topimage9.jpg";
	imgs[9] = "http://www.kashiwadaisuke.com/topimage/topimage10.jpg";
	imgs[10] = "http://www.kashiwadaisuke.com/topimage/topimage11.jpg";
	imgs[11] = "http://www.kashiwadaisuke.com/topimage/topimage12.jpg";
	imgs[12] = "http://www.kashiwadaisuke.com/topimage/topimage13.jpg";
	imgs[13] = "http://www.kashiwadaisuke.com/topimage/topimage14.jpg";
	imgs[14] = "http://www.kashiwadaisuke.com/topimage/topimage15.jpg";
	imgs[15] = "http://www.kashiwadaisuke.com/topimage/topimage16.jpg";
	imgs[16] = "http://www.kashiwadaisuke.com/topimage/topimage17.jpg";
	imgs[17] = "http://www.kashiwadaisuke.com/topimage/topimage18.jpg";
	imgs[18] = "http://www.kashiwadaisuke.com/topimage/topimage19.jpg";	
	n = Math.floor(Math.random() * imgs.length);
	document.getElementById('topimg').src = imgs[n];
	document.getElementById('topimg').style.height = 186;
}