if (document.images) {

var nav_aboutA = new Image()
nav_aboutA.src = "../../images/nav/nav_about_off.gif"
var nav_aboutZ = new Image()
nav_aboutZ.src = "../../images/nav/nav_about_on.gif"

var nav_attorneysA = new Image()
nav_attorneysA.src = "../../images/nav/nav_attorneys_off.gif"
var nav_attorneysZ = new Image()
nav_attorneysZ.src = "../../images/nav/nav_attorneys_on.gif"

var nav_areasA = new Image()
nav_areasA.src = "../../images/nav/nav_areas_off.gif"
var nav_areasZ = new Image()
nav_areasZ.src = "../../images/nav/nav_areas_on.gif"

var nav_newsA = new Image()
nav_newsA.src = "../../images/nav/nav_news_off.gif"
var nav_newsZ = new Image()
nav_newsZ.src = "../../images/nav/nav_news_on.gif"

var nav_mediaA = new Image()
nav_mediaA.src = "../../images/nav/nav_media_off.gif"
var nav_mediaZ = new Image()
nav_mediaZ.src = "../../images/nav/nav_media_on.gif"

var nav_publicationsA = new Image()
nav_publicationsA.src = "../../images/nav/nav_publications_off.gif"
var nav_publicationsZ = new Image()
nav_publicationsZ.src = "../../images/nav/nav_publications_on.gif"

}
function act(imgName) {
if (document.images)
document[imgName].src = eval(imgName + 'Z.src')
}

function inact(imgName) {
if (document.images)
document[imgName].src = eval(imgName + 'A.src')
}