var myarray=new Array;
myarray[0]='<a href=\"http://www.vanssurf.com" target=\"_blank\" class=\"blk\"><img src=\"http://www.triplecrownofsurfing.com/images/banners/vans_dylan_300x250.jpg" ALT= \"VANS" border=0></a>';
myarray[1]='<a href=\"http://www.vanssurf.com" target=\"_blank\" class=\"blk\"><img src=\"http://www.triplecrownofsurfing.com/images/banners/vans_reef_300x250.jpg" ALT= \"VANS" border=0></a>';
myarray[2]='<a href=\"http://www.vanssurf.com" target=\"_blank\" class=\"blk\"><img src=\"http://www.triplecrownofsurfing.com/images/banners/vans_dylan_300x250.jpg" ALT= \"VANS" border=0></a>';
myarray[3]='<a href=\"http://www.vanssurf.com" target=\"_blank\" class=\"blk\"><img src=\"http://www.triplecrownofsurfing.com/images/banners/vans_reef_300x250.jpg" ALT= \"VANS" border=0></a>';
var whichbanner = Math.round(eval(myarray.length-1)*Math.random());
document.write(myarray[whichbanner] + '<BR>');