var randomnumber; var x; var books; books = 9; randomnumber = Math.floor(Math.random() * books); randomnumber = randomnumber + 1; switch(randomnumber) { case 1: document.write('

'); break; case 2: document.write('

'); break; case 3: document.write('

'); break; case 4: document.write('

'); break; case 5: document.write('

'); break; case 6: document.write('

'); break; case 7: document.write('

'); break; case 8: document.write('

'); break; case 9: document.write('

'); break; }