Nav1On = new Image()
Nav1On.src = "/images/about_on.gif"
Nav1Off = new Image()
Nav1Off.src = "/images/about_off.gif"

Nav2On = new Image()
Nav2On.src = "/images/fs_on.gif"
Nav2Off = new Image()
Nav2Off.src = "/images/fs_off.gif"

Nav3On = new Image()
Nav3On.src = "/images/photo_on.gif"
Nav3Off = new Image()
Nav3Off.src = "/images/photo_off.gif"

Nav4On = new Image()
Nav4On.src = "/images/exhibit_on.gif"
Nav4Off = new Image()
Nav4Off.src = "/images/exhibit_off.gif"

Nav5On = new Image()
Nav5On.src = "/images/info_on.gif"
Nav5Off = new Image()
Nav5Off.src = "/images/info_off.gif"

Nav6On = new Image()
Nav6On.src = "/images/home_on.gif"
Nav6Off = new Image()
Nav6Off.src = "/images/home_off.gif"

Nav7On = new Image()
Nav7On.src = "/images/contact_on.gif"
Nav7Off = new Image()
Nav7Off.src = "/images/contact_off.gif"

function rollover(whichimg,overimg) {
eval('document.images["' + whichimg + '"].src = ' + overimg + '.src');
}