var navHoveImages = { Strategy: new Image(), Solutions: new Image(), Success: new Image(), Story: new Image() }
navHoveImages.Strategy.src = "/Images/Navigation/Strategy-over.png";
navHoveImages.Solutions.src = "/Images/Navigation/Solutions-over.png";
navHoveImages.Success.src = "/Images/Navigation/Success-over.png";
navHoveImages.Story.src = "/Images/Navigation/Story-over.png";

function hoverImage(image) {
  image.src = "/Images/Navigation/" + image.attributes["alt"].value +"-over.png";
}

function unHoverImage(image) {
  image.src = "/Images/Navigation/" + image.attributes["alt"].value + ".png";
}