maxPic = 7;
		curPic = 1;
		var pics = new Array();
		for (var i = 1; i <= maxPic; i++) 
		{
			pics [i] = "img/DSR_" + i + ".jpg";
		}
		
		function next() 
		{
			if (curPic < maxPic) 
			{
				curPic++;
				document.images[0].src = pics [curPic];
			}
		}
		
		function prev() 
		{
			if (curPic > 1) 
			{
				curPic--;
				document.images[0].src = pics [curPic];
			}
		}