var images = new Array();

images[0] = '<img src="images/main_image01.jpg" alt="Dominic Lehane - Ladies &amp; Mens Hairdressing" />'
images[1] = '<img src="images/main_image02.jpg" alt="Dominic Lehane - Ladies &amp; Mens Hairdressing" />'
images[2] = '<img src="images/main_image03.jpg" alt="Dominic Lehane - Ladies &amp; Mens Hairdressing" />'

var numberofimages = images.length;
var randomImage = Math.round(Math.random()*(numberofimages-1));