iArray=new Array(
    "images/change/change1.gif",
    "images/change/change2.gif",
    "images/change/change3.gif",
    "images/change/change4.gif",
    "images/change/change5.gif",
    "images/change/change6.gif",
    "images/change/change7.gif",
    "images/change/change8.gif",
    "images/change/change9.gif",
    "images/chage/change10.gif",
    "images/change/change11.gif",
    "images/change/change12.gif",
    "images/change/change13.gif",
    "images/change/change14.gif",
    "images/change/change15.gif");
  ri=Math.floor(iArray.length*Math.random());
  ri='<IMG SRC="'+ iArray[ri]+ '" BORDER=0>';