var imghp    = new Array()

 imghp[0]='http://www.swbooks.co.uk/clonewars/theclonewars/images/banners/01.jpg';
 imghp[1]='http://www.swbooks.co.uk/clonewars/theclonewars/images/banners/02.jpg';
 imghp[2]='http://www.swbooks.co.uk/clonewars/theclonewars/images/banners/03.jpg';
 imghp[3]='http://www.swbooks.co.uk/clonewars/theclonewars/images/banners/04.jpg';
 imghp[4]='http://www.swbooks.co.uk/clonewars/theclonewars/images/banners/05.jpg';

var hp       = Math.floor(Math.random()*imghp.length);