disable the submit button when the name and surname fields are empty jquery code example

Example 1: jquery don't empty specific form field after submit

// Bind an event handler to the "click" JavaScript event
$('#clear').click(function(){
    // Selects all elements of type text and clear all
    $('#parent > input:text:not(".ignore")').val('');   
  	// For excluding Multiple inputs 
  	$("input:text:not('#objective_time_period, #subjective_time_period')").val('');
});

Example : http://jsfiddle.net/3zVyv/1/

Example 2: jquery don't empty specific form field after submit

form.find('textarea,input,select').not('input[name="INPUT_NAME_1"],input[name="INPUT_NAME_2"]').val('');