//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(8)
                roll = new MakeArray(8)

                normal[1].src = "images/buttons/btn_why_off.gif"
                normal[2].src = "images/buttons/btn_sizes_off.gif" 
                normal[3].src = "images/buttons/btn_supplies_off.gif" 
                normal[4].src = "images/buttons/btn_tips_off.gif" 
                normal[5].src = "images/buttons/btn_security_off.gif"
                normal[6].src = "images/buttons/btn_map_off.gif"
                normal[7].src = "images/buttons/btn_contact_off.gif" 
                normal[8].src = "images/buttons/btn_home_off.gif"

                roll[1].src = "images/buttons/btn_why_on.gif"
                roll[2].src = "images/buttons/btn_sizes_on.gif" 
                roll[3].src = "images/buttons/btn_supplies_on.gif" 
                roll[4].src = "images/buttons/btn_tips_on.gif" 
                roll[5].src = "images/buttons/btn_security_on.gif"
                roll[6].src = "images/buttons/btn_map_on.gif"
                roll[7].src = "images/buttons/btn_contact_on.gif" 
                roll[8].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
}
}

// -->