function checkCode() {
  
  var code = document.frmShipping._disCode.value;
  var approved = 0;
  var discMult = 1;
  if (code.indexOf('32') != -1){discMult = .95;approved=1;promoUsed=promoUsed+1;}
  if (code.indexOf('67') != -1){discMult = .90;approved=1;promoUsed=promoUsed+1;}
  if (code.indexOf('52') != -1){discMult = .85;approved=1;promoUsed=promoUsed+1;}
  if (code.indexOf('74') != -1){discMult = .8;approved=1;promoUsed=promoUsed+1;}

  if (promoUsed == 1){
      subtotal = subtotal * discMult;
	  
	  //if ((state.toLowerCase().indexOf('alif') != -1) || (state.toUpperCase().indexOf('CA') != -1))  {
       //     salesTaxValue = presentValue(eval([[subtotal]] * taxrate));
      // }

    finalUpdate();
   }
  
  if (approved == 0){alert('Invalid Promo code. Please contact us at (510) 549-2282 if you feel this is in error.');}

}