function GetRandomImage()
  {
    var files=new Array(6);
    var alts=new Array(6);

    var i=Math.round(Math.random()*7);

    files[0]="covers/bear-hull.jpg";
    alts[0]="Hull Zero Three";
    files[1]="covers/salvatore-gauntlgrym.jpg";
    alts[1]="Gauntlgrym";
    files[2]="covers/salvatore-bear.jpg";
    alts[2]="The Bear";
    files[3]="covers/scholes-antiphon.jpg";
    alts[3]="Antiphon";
    files[4]="covers/kate-torment.jpg";
    alts[4]="Torment";
    files[5]="covers/sanderson-way.jpg";
    alts[5]="The Way of Kings";
    files[6]="covers/kadrey-kill.jpg";
    alts[6]="Kill the Dead";
    files[7]="covers/weber-out.jpg";
    alts[7]="Out of the Dark";

    return '<img src="' + files[i] + '" alt="' + alts[i] + '"/>';
  }

document.write(GetRandomImage());