if (document.images) {
notesoff = new Image
aboutdanioff = new Image
aboutbookoff = new Image
pressoff = new Image
audiooff = new Image
readersguideoff = new Image

noteson = new Image
aboutdanion = new Image
aboutbookon = new Image
presson = new Image
audioon = new Image
readersguideon = new Image

notesoff.src = "images/snav_notes.gif"
aboutdanioff.src = "images/snav_aboutdani.gif"
aboutbookoff.src = "images/snav_aboutbook.gif"
pressoff.src = "images/snav_press.gif"
audiooff.src = "images/snav_audio.gif"
readersguideoff.src = "images/snav_readersguide.gif"

noteson.src = "images/snav_notes_r.gif"
aboutdanion.src = "images/snav_aboutdani_r.gif"
aboutbookon.src = "images/snav_aboutbook_r.gif"
presson.src = "images/snav_press_r.gif"
audioon.src = "images/snav_audio_r.gif"
readersguideon.src = "images/snav_readersguide_r.gif"

}
else {

notesoff =  " "
aboutdanioff =  " "
aboutbookoff =  " "
pressoff =  " "
audiooff =  " "
readersguideoff =  " "

noteson =  " "
aboutdanion =  " "
aboutbookon =  " "
presson =  " "
audioon =  " "
readersguideon =  " "

document.notes =  " "
document.aboutdani =  " "
document.aboutbook =  " "
document.press =  " "
document.audio =  " "
document.readersguide =  " "

}