var servicesImg = new Image(174,30);
var servicesImgOn = new Image(174,30);

servicesImg.src = "Images/structural_nav1_off.gif";
servicesImgOn.src = "Images/structural_nav1_on.gif";

var projectImg = new Image(174,20);
var projectImgOn = new Image(174,20);

projectImg.src = "Images/structural_nav2_off.gif";
projectImgOn.src = "Images/structural_nav2_on.gif";

var contactImg = new Image(174,20);
var contactImgOn = new Image(174,20);

contactImg.src = "Images/structural_nav3_off.gif";
contactImgOn.src = "Images/structural_nav3_on.gif";

var aboutImg = new Image(174,20);
var aboutImgOn = new Image(174,20);

aboutImg.src = "Images/structural_nav4_off.gif";
aboutImgOn.src = "Images/structural_nav4_on.gif";

var employImg = new Image(174,20);
var employImgOn = new Image(174,20);

employImg.src = "Images/structural_nav5_off.gif";
employImgOn.src = "Images/structural_nav5_on.gif";

var newsImg = new Image(174,20);
var newsImgOn = new Image(174,20);

newsImg.src = "Images/structural_nav6_off.gif";
newsImgOn.src = "Images/structural_nav6_on.gif";

var clientsImg = new Image(174,20);
var clientsImgOn = new Image(174,20);

clientsImg.src = "Images/structural_nav7_off.gif";
clientsImgOn.src = "Images/structural_nav7_on.gif";

var linksImg = new Image(174,30);
var linksImgOn = new Image(174,30);

linksImg.src = "Images/structural_nav8_off.gif";
linksImgOn.src = "Images/structural_nav8_on.gif";