var url="";
var imgObjSupport = false;
if (document.images) {imgObjSupport = true;} else {imgObjSupport = false;} 
if (imgObjSupport) { 

home_off = new Image();
home_off.src = "/images/bt_home.gif";
home_on = new Image();
home_on.src = "/images/bt_home_on.gif";

reviews_off = new Image();
reviews_off.src = "/images/bt_reviews.gif";
reviews_on = new Image();
reviews_on.src = "/images/bt_reviews_on.gif";

news_off = new Image();
news_off.src = "/images/bt_news.gif";
news_on = new Image();
news_on.src = "/images/bt_news_on.gif";

forum_off = new Image();
forum_off.src = "/images/bt_forum.gif";
forum_on = new Image();
forum_on.src = "/images/bt_forum_on.gif";

team_off = new Image();
team_off.src = "/images/bt_team.gif";
team_on = new Image();
team_on.src = "/images/bt_team_on.gif";

affiliates_off = new Image();
affiliates_off.src = "/images/bt_affiliates.gif";
affiliates_on = new Image();
affiliates_on.src = "/images/bt_affiliates_on.gif";

privacy_policy_off = new Image();
privacy_policy_off.src = "/images/bt_privacy_policy.gif";
privacy_policy_on = new Image();
privacy_policy_on.src = "/images/bt_privacy_policy_on.gif";

shopping_off = new Image();
shopping_off.src = "/images/bt_shopping.gif";
shopping_on = new Image();
shopping_on.src = "/images/bt_shopping_on.gif";

advertise_off = new Image();
advertise_off.src = "/images/bt_advertise.gif";
advertise_on = new Image();
advertise_on.src = "/images/bt_advertise_on.gif";
}




function roll_on(imgName) {if (imgObjSupport) {imgOn = eval(imgName + "_on.src"); document [imgName].src = imgOn;}}
function roll_off(imgName) {if (imgObjSupport) {imgOff = eval(imgName + "_off.src"); document [imgName].src = imgOff;}}