var backgr1="/images/backgrounds/dukebg.gif" var backgr2="/images/backgrounds/dukebg.gif" var backgr3="/images/backgrounds/dukebg.gif" var cur=Math.round(6*Math.random()) if (cur<=1) backgr=backgr1 else if (cur<=4) backgr=backgr2 else backgr=backgr3 document.write('')