var _showAlert = wFORMS.behaviors['validation'].showAlert; 

wFORMS.behaviors['validation'].showAlert = function (nbTotalErrors) { 
     // to scroll to top, use: 
     window.scrollTo(0,0); 
     // to scroll to an anchor, use: 
     // window.location.hash="anchorName"; 
     // call wForms showAlert function 
   _showAlert(nbTotalErrors); 
}