function chooseLink()
{
    Url = new Array;
    Url[0] = "http://www.stuartngbooks.com/deseve.html";
    Url[1] = "http://budsartbooks.com/prod.cfm/pc/SKCHS/cid/14";

    Linkchoice = Math.floor(Math.random()*2);
    window.open(Url[Linkchoice],'_new');
}