image1 = new Image();
image1.src = "DirectionsOver.gif";

image2 = new Image();
image2.src = "FeesOver.gif";

image3 = new Image();
image3.src = "HistoryOver.gif";

image4 = new Image();
image4.src = "IndividualOver.gif";

image5 = new Image();
image5.src = "MerchantRegOver.gif";

image6 = new Image();
image6.src = "ScheduleOver.gif";


function roll(img_name1, img_src1)
   {
   document[img_name1].src = img_src1;
   }