var arr=[];
arr[0] = ["images/rotate_civil/01.jpg",""];
arr[1] = ["images/rotate_civil/02.jpg",""];
arr[2] = ["images/rotate_civil/03.jpg",""];
arr[3] = ["images/rotate_civil/04.jpg",""];
arr[4] = ["images/rotate_civil/05.jpg",""];
arr[5] = ["images/rotate_civil/06.jpg",""];

var counter = 1; 
function changeimg() 
{ document.getElementById("img").src = arr[counter][0]
// document.getElementById("link").href = arr[counter][1]
document.getElementById("img").title = arr[counter][1]
counter++;  if (counter == arr.length)   
{counter = 1; } setTimeout('changeimg()', 6000)}