if (document.images) {
  btn_business_a = new Image();
  btn_business_a.src = "/images/btn_business_a.gif";
  btn_business_b = new Image();
  btn_business_b.src = "/images/btn_business_b.gif";
  
  btn_personal_a = new Image();
  btn_personal_a.src = "/images/btn_personal_a.gif";
  btn_personal_b = new Image();
  btn_personal_b.src = "/images/btn_personal_b.gif";

  btn_loans_a = new Image();
  btn_loans_a.src = "/images/btn_loans_a.gif";
  btn_loans_b = new Image();
  btn_loans_b.src = "/images/btn_loans_b.gif";

  btn_products_a = new Image();
  btn_products_a.src = "/images/btn_products_a.gif";
  btn_products_b = new Image();
  btn_products_b.src = "/images/btn_products_b.gif";

  btn_smallbiz_a = new Image();
  btn_smallbiz_a.src = "/images/btn_smallbiz_a.gif";
  btn_smallbiz_b = new Image();
  btn_smallbiz_b.src = "/images/btn_smallbiz_b.gif";
  
  btn_lawfirms_a = new Image();
  btn_lawfirms_a.src = "/images/btn_lawfirms_a.gif";
  btn_lawfirms_b = new Image();
  btn_lawfirms_b.src = "/images/btn_lawfirms_b.gif";
  
  btn_physician_a = new Image();
  btn_physician_a.src = "/images/btn_physician_a.gif";
  btn_physician_b = new Image();
  btn_physician_b.src = "/images/btn_physician_b.gif";
  
  btn_cpa_a = new Image();
  btn_cpa_a.src = "/images/btn_cpa_a.gif";
  btn_cpa_b = new Image();
  btn_cpa_b.src = "/images/btn_cpa_b.gif";
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}