var mess = new Array('http://www.buildstore.co.uk/mykindofhome/images/video-media.jpg','http://www.buildstore.co.uk/mykindofhome/images/video-media2.jpg');
var max = mess.length;
var num = Math.floor((Math.random() * max));
var string1, string2, stringtotal
string1 = "<img src='";
string2 ="' alt='View videos of the national self build &amp; renovation centre' title='View videos of the national self build &amp; renovation centre' width='201' height='167' hspace='10'  vspace='10' border='0' align='right' />";
stringtotal = string1 + mess[num] + string2;
document.writeln(stringtotal);