if (document.images) {

galleryon = new Image(200, 40);
galleryon.src = "picts/galleryon.gif"

galleryoff = new Image(200, 40);
galleryoff.src = "picts/galleryoff.gif"

nexton = new Image(200, 40);
nexton.src = "picts/nexton.gif"

nextoff = new Image(200, 40);
nextoff.src = "picts/nextoff.gif"

backon = new Image(200, 40);
backon.src = "picts/backon.gif"

backoff = new Image(200, 40);
backoff.src = "picts/backoff.gif"

guestbookon = new Image(200, 40);
guestbookon.src = "picts/guestbook1a.gif"

guestbookoff = new Image(200, 40);
guestbookoff.src = "picts/guestbook1.gif"

pesquisaon = new Image(200, 40);
pesquisaon.src = "picts/pesquisa0.gif"

pesquisaoff = new Image(200, 40);
pesquisaoff.src = "picts/pesquisa.gif"


}

function img_act(imgName) {
if (document.images) {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;
}
}

function img_inact(imgName) {
if (document.images) {
imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff;
}
}