function random_text()
{};
var random_text = new random_text();

// Set the number of text strings to zero to start
var number = 0;

// Incremental list of all possible Text
random_text[number++] ="<strong>Free Instant Fitness Assessment: </strong><br><a href='http://createyourself.co.uk/item/168' target='_self'>To receive an instant Fitness Evaluation absolutely free click here.</a>"

// Create a random number with limits based on the number
// of possible random text strings
var random_number = Math.floor(Math.random() * number);

// Write out the random text to the browser
document.write(random_text[random_number]);