function random_img() {
		var random_image = new Array();
		random_image[1] = "images/11.jpg";
		random_image[2] = "images/21.jpg";
		random_image[3] = "images/22.jpg";
		random_image[4] = "images/23.jpg";
		random_image[5] = "images/24.jpg";
		random_image[6] = "images/25.jpg";
	
								
		captions = ['','','','','',''];
		var num = Math.floor(Math.random()*random_image.length);
		if (num==0) num=1;
		 document.write('<img src="'+random_image[num]+'" border=0>'+'<br><div class="caption">'+captions[num-1]+'</div>');
		}
		random_img();