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

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

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

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

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

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