randomImage(['fixed1_small.jpg','fixed2_small.jpg','fixed3_small.jpg','fixed4_small.jpg','fixed6_small.jpg',
		'folder1_small.jpg','folder2_small.jpg','folder3_small.jpg','folder4_small.jpg','folder5_small.jpg','folder6_small.jpg',
		'folder7_small.jpg','folder8_small.jpg','folder9_small.jpg','folder10_small.jpg','folder11_small.jpg','folder12_small.jpg']);
	function randomImage(imgArr)
	{
		var imgSrc, imgW, imgH, r;
    		r = randomNumber(imgArr.length);
      		imgSrc = imgArr[r];
  		document.write('<IMG SRC=images/'+imgSrc+'>');
  	}