var rotateIDs = new Array ("top_img","top_img2","top_img5","top_img7");
							arrlength=rotateIDs.length;
							var whichImage = Math.round(Math.random()*(arrlength-1));
							var imageToShow = "<img src=images/"+rotateIDs[whichImage]+".jpg border=0>";
                        document.write("<td width='300' height='129' valign='bottom' align='left'>")
                        document.write(imageToShow);
							document.write("</td>")