dynamically_add_jquery_validator.js

var rules = {"email-address":{minlength:10}}
// or var validations = { rules: {...}, messages: {...} }

for(fieldName in rules){
  var element = $('input[name="' + fieldName + '"]');
  var fieldRules = rules[fieldName]

  for(ruleName in fieldRules){
    var rule = {}; 
    rule[ruleName] = fieldRules[ruleName]; 
    element.rules("add", rule);
  }
}