imageName = new Array()
imageName[0] = "../../images/topnav01a.gif"
imageName[1] = "../../images/topnav01b.gif"
imageName[2] = "../../images/topnav02a.gif"
imageName[3] = "../../images/topnav02b.gif"
imageName[4] = "../../images/topnav03a.gif"
imageName[5] = "../../images/topnav03b.gif"
imageName[6] = "../../images/topnav04a.gif"
imageName[7] = "../../images/topnav04b.gif"
imageName[8] = "../../images/topnav05a.gif"
imageName[9] = "../../images/topnav05b.gif"
imageName[10] = "../../images/topnav06a.gif"
imageName[11] = "../../images/topnav06b.gif"
imageName[12] = "../../images/topnav07a.gif"
imageName[13] = "../../images/topnav07b.gif"
imageName[14] = "../../images/topnav08a.gif"
imageName[15] = "../../images/topnav08b.gif"
imageName[16] = "../../images/topnav09a.gif"
imageName[17] = "../../images/topnav09b.gif"
imageName[18] = "../../images/topnav10a.gif"
imageName[19] = "../../images/topnav10b.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]
}