if (document.images)
{

 navSearchN = new Image(121,22); navSearchN.src = "images/nav/search_off.jpg";
 navSearchO = new Image(121,22); navSearchO.src = "images/nav/search_on.jpg";
 
 navMlsN = new Image(72,22); navMlsN.src = "images/nav/mls_off.jpg";
 navMlsO = new Image(72,22); navMlsO.src = "images/nav/mls_on.jpg";
 
 navContactN = new Image(128,22); navContactN.src = "images/nav/contact_off.jpg";
 navContactO = new Image(128,22); navContactO.src = "images/nav/contact_on.jpg";
 
 navPrivacyN = new Image(72,22); navPrivacyN.src = "images/nav/privacy_off.jpg";
 navPrivacyO = new Image(72,22); navPrivacyO.src = "images/nav/privacy_on.jpg";

 navHomeN = new Image(72,22); navHomeN.src = "images/nav/home_off.jpg";
 navHomeO = new Image(72,22); navHomeO.src = "images/nav/home_on.jpg";

}

function Swap(imgName,imgObjName)
{
 if (document.images)
  {
   document.images[imgName].src = eval(imgObjName + ".src");
  }
}