var imgMax = 30;
	var imgRandom = Math.floor(Math.random() * imgMax);
	switch(imgRandom) {
	case 0:document.write("<img src='image04/01.jpg' width='160' height='120'");break;
	case 1:document.write("<img src='image04/02.jpg' width='160' height='120'");break;
	case 2:document.write("<img src='image04/03.jpg' width='160' height='120'");break;
	case 3:document.write("<img src='image04/04.jpg' width='160' height='120'");break;
	case 4:document.write("<img src='image04/05.jpg' width='160' height='120'");break;
	case 5:document.write("<img src='image04/06.jpg' width='160' height='120'");break;
	case 6:document.write("<img src='image04/07.jpg' width='160' height='120'");break;
	case 7:document.write("<img src='image04/08.jpg' width='160' height='120'");break;
	case 8:document.write("<img src='image04/09.jpg' width='160' height='120'");break;
	case 9:document.write("<img src='image04/10.jpg' width='160' height='120'");break;
	case 10:document.write("<img src='image04/11.jpg' width='160' height='120'");break;
	case 11:document.write("<img src='image04/12.jpg' width='160' height='120'");break;
	case 12:document.write("<img src='image04/13.jpg' width='160' height='120'");break;
	case 13:document.write("<img src='image04/14.jpg' width='160' height='120'");break;
	case 14:document.write("<img src='image04/15.jpg' width='160' height='120'");break;
	case 15:document.write("<img src='image04/16.jpg' width='160' height='120'");break;
	case 16:document.write("<img src='image04/17.jpg' width='160' height='120'");break;
	case 17:document.write("<img src='image04/18.jpg' width='160' height='120'");break;
	case 18:document.write("<img src='image04/19.jpg' width='160' height='120'");break;
	case 19:document.write("<img src='image04/20.jpg' width='160' height='120'");break;
	case 20:document.write("<img src='image04/21.jpg' width='160' height='120'");break;
	case 21:document.write("<img src='image04/22.jpg' width='160' height='120'");break;
	case 22:document.write("<img src='image04/23.jpg' width='160' height='120'");break;
	case 23:document.write("<img src='image04/24.jpg' width='160' height='120'");break;
	case 24:document.write("<img src='image04/25.jpg' width='160' height='120'");break;
	case 25:document.write("<img src='image04/26.jpg' width='160' height='120'");break;
	case 26:document.write("<img src='image04/27.jpg' width='160' height='120'");break;
	case 27:document.write("<img src='image04/28.jpg' width='160' height='120'");break;
	case 28:document.write("<img src='image04/29.jpg' width='160' height='120'");break;
	default:document.write("<img src='image04/30.jpg' width='160' height='120'");
	}