//this script is for the navigation

browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion)
>= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") &&
(parseInt(navigator.appVersion) >= 4 )))
        if ( browser) {
                normal = new MakeArray(12)
                roll = new MakeArray(12)

                normal[1].src = "/images/buttons/btn_who_off.gif"
                normal[2].src = "/images/buttons/btn_docs_off.gif" 
                normal[3].src = "/images/buttons/btn_policy_off.gif" 
                normal[4].src = "/images/buttons/btn_energy_off.gif"                 
                normal[5].src = "/images/buttons/btn_trans_off.gif"
                normal[6].src = "/images/buttons/btn_projects_off.gif"
                normal[7].src = "/images/buttons/btn_calendar_off.gif"
                normal[8].src = "/images/buttons/btn_blog_off.gif" 
                normal[9].src = "/images/buttons/btn_members_off.gif"
                normal[10].src = "/images/buttons/btn_wiki_off.gif"
                normal[11].src = "/images/buttons/btn_news_off.gif"
                normal[12].src = "/images/buttons/btn_home_off.gif"

                roll[1].src = "/images/buttons/btn_who_on.gif"
                roll[2].src = "/images/buttons/btn_docs_on.gif" 
                roll[3].src = "/images/buttons/btn_policy_on.gif"
                roll[4].src = "/images/buttons/btn_energy_on.gif"                 
                roll[5].src = "/images/buttons/btn_trans_on.gif"
                roll[6].src = "/images/buttons/btn_projects_on.gif"
                roll[7].src = "/images/buttons/btn_calendar_on.gif"
                roll[8].src = "/images/buttons/btn_blog_on.gif" 
                roll[9].src = "/images/buttons/btn_members_on.gif"
                roll[10].src = "/images/buttons/btn_wiki_on.gif"
                roll[11].src = "/images/buttons/btn_news_on.gif"
                roll[12].src = "/images/buttons/btn_home_on.gif"

                                }
function MakeArray(n) {
      this.length = n
      for (var i = 1; i<=n; i++) {
       this[i] = new Image()

                      }
                return this
}

function msover(num) {
if ( browser) { 
loadImage = "Image" + num;
document.images[loadImage].src = roll[num].src
}

                }

function msout(num) {
if ( browser) {
loadImage = "Image" + num;
document.images[loadImage].src = normal[num].src
}
}

// -->