// Function that return a number between 0 and "nums - 1"
function getRandom(nums)
{
var ranNum= Math.round(Math.random()*nums);
return ranNum;
}

// Tells us how many images we have available.
var numberOfImages = 8;
var randomNumber = getRandom(numberOfImages);

// Create an array to hold the names of all images.
var image = new Array(numberOfImages);
image[1] = "images/center.jpg";
image[2] = "images/center2.jpg";
image[3] = "images/center3.jpg";
image[4] = "images/center4.jpg";
image[5] = "images/center5.jpg";
image[6] = "images/center6.jpg";
image[7] = "images/center7.jpg";
image[8] = "images/center8.jpg";


// Write the img tag with a random image name.
document.write("<img src='" + image[randomNumber] + "' alt='Peoples State Bank, Smaller Bank... Bigger Service' title='Peoples State Bank, Smaller Bank... Bigger Service' />");