var start = new Date();
   		function Array() { return this; }
   		
   		var img = new Array();
   		var txt = new Array();
   		
   		img[0] = "picture1.jpg";
   		txt[0] = "caption1.gif";
   		img[1] = "picture2.jpg";
   		txt[1] = "caption2.gif";
   		img[2] = "picture3.jpg";
   		txt[2] = "caption3.gif";
   		img[3] = "picture4.jpg";
   		txt[3] = "caption4.gif";
   		
   		var num_img = 4;
   		
   		function pix()
   		{
   			var now = new Date;
   			var x = now.getSeconds() % num_img;
   			
   			document.write("<IMG SRC='slides/" + img[x] + "' BORDER=0><BR>");
   			document.write("<IMG SRC='slides/" + txt[x] + "' BORDER=0>");
   		}