var j, list= new Array(), list_htm= new Array()
  list[list.length]='images/design-portfolio-ani2.gif alt="Design Portfolio"';
  list[list.length]='images/software-quote-ani.gif alt="Bespoke software quote"';
  list[list.length]='images/web-quote-ani_2.gif alt="Web site quote"';
  list[list.length]='images/bespoke-software-ani.gif alt="Bespoke Software"';

  list_htm[list_htm.length]='"design-portfolio.htm"';
  list_htm[list_htm.length]='"software-quote.asp"';
  list_htm[list_htm.length]='"web-site-quote.asp"';
  list_htm[list_htm.length]='"bespoke-software.htm"';

  j=parseInt(Math.random()*list.length);
  j=(isNaN(j))?0:j;
    document.write('<a href=' + list_htm[j] + '><img src=' + list[j] + ' border="0"></a>');