var intImageDave = 1;

function swapImageDave() {
switch (intImageDave) {
 case 1:
   image_by_Dave.src = "images/home-day-night-night-day-390.jpg"
   intImageDave = 2
   return(false);
case 2:
   image_by_Dave.src = "images/home-day-night-day-only-390.jpg"
   intImageDave = 1
   return(false);
 }
}

var intImageAdrianna = 1;

function swapImageAdrianna() {
switch (intImageAdrianna) {
 case 1:
   image_by_Adrianna.src = "images/home-harvesting-hope-onblack-390-b.jpg"
   intImageAdrianna = 2
   return(false);
case 2:
   image_by_Adrianna.src = "images/home-harvestinghope-detail-390.jpg"
   intImageAdrianna = 1
   return(false);
 }
}