removes all validation rules from the input

Required file: ext/dhtmlxform_dyn.js

Parameters:

• name - the id of item (the item's parameter 'name')
• value - the value of a radio button ( the radio's parameter 'value'). Required for 'radio' items only

  // for radio button
myForm.clearValidation(name, value);
  // for other items
myForm.clearValidation(name);