if(document.getElementById('contribution') && !YAHOO.util.Dom.getElementsByClassName('contribbannererror')){

    inputs = document.getElementById('contribution').getElementsByTagName("input");
    
    for (i = 0; i < inputs.length; i++){
    
              if(inputs[i].name == "firstname" || inputs[i].name == "lastname"|| inputs[i].name == "addr1"|| inputs[i].name == "addr2"|| inputs[i].name == "city"|| inputs[i].name == "zip"|| inputs[i].name == "email"|| inputs[i].name == "phone"){
    
                                  inputs[i].value = "";
               }
    
    }
}