var randomnumber=1+Math.floor(Math.random()*4);
     var img="l" + randomnumber + ".jpg";
     code="<a href=http://www.hiphopjamz.com><img alt=hip_hop_jamz border=0 src=";
     code=code+"/imgs/"+img;
     code=code+ " width=762 height=95></a>";
document.write(code);