imageName = new Array()
imageName[0] = "images/nav_home1.gif"
imageName[1] = "images/nav_home2.gif"
imageName[2] = "images/nav_news1.gif"
imageName[3] = "images/nav_news2.gif"
imageName[4] = "images/nav_guys1.gif"
imageName[5] = "images/nav_guys2.gif"
imageName[6] = "images/nav_about1.gif"
imageName[7] = "images/nav_about2.gif"
imageName[8] = "images/nav_booking1.gif"
imageName[9] = "images/nav_booking2.gif"
imageName[10] = "images/nav_contact1.gif"
imageName[11] = "images/nav_contact2.gif"

function swapOut(num,imgname){
     imgname.src = im[num].src
}
im = new Array()
for (var i = 0; i < imageName.length; i++){
       im[i] = new Image()
       im[i].src = imageName[i]
}