$(document).ready(function(){
  
  var emailerror = false;
  var firstnameerror = false;
  var surnameerror = false;
  var representingerror = false;
  
  $('#header .phplist-header-submit').click(function () {
    if ( $('#header #email').val() == '' )
    {
      $('#header #email').addClass('error');
      emailerror = true;
    }
    else
    {
      $('#header #email').removeClass('error');
      emailerror = false;
    }
    if ( $('#header #firstname').val() == '' )
    {
      $('#header #firstname').addClass('error');
      firstnameerror = true;
    }
    else
    {
      $('#header #firstname').removeClass('error');
      firstnameerror = false;
    }
    if ( $('#header #surname').val() == '' )
    {
      $('#header #surname').addClass('error');
      surnameerror = true;
    }
    else
    {
      $('#header #surname').removeClass('error');
      surnameerror = false;
    }
    if ( $('#header #representing').val() == '' )
    {
      $('#header #representing').addClass('error');
      representingerror = true;
    }
    else
    {
      $('#header #representing').removeClass('error');
      representingerror = false;
    }
    
    if ( emailerror == false && firstnameerror == false && surnameerror == false && representingerror == false )
    {
      return true;
    }
    else
    {
      return false;
    }
    
  });
  
  
  $('#content .phplist-content-submit').click(function () {
    if ( $('#content #email-content').val() == '' )
    {
      $('#content #email-content').addClass('error');
      emailerror = true;
    }
    else
    {
      $('#content #email-content').removeClass('error');
      emailerror = false;
    }
    if ( $('#content #firstname-content').val() == '' )
    {
      $('#content #firstname-content').addClass('error');
      firstnameerror = true;
    }
    else
    {
      $('#content #firstname-content').removeClass('error');
      firstnameerror = false;
    }
    if ( $('#content #surname-content').val() == '' )
    {
      $('#content #surname-content').addClass('error');
      surnameerror = true;
    }
    else
    {
      $('#content #surname-content').removeClass('error');
      surnameerror = false;
    }
    if ( $('#content #representing-content').val() == '' )
    {
      $('#content #representing-content').addClass('error');
      representingerror = true;
    }
    else
    {
      $('#content #representing-content').removeClass('error');
      representingerror = false;
    }
    
    if ( emailerror == false && firstnameerror == false && surnameerror == false && representingerror == false )
    {
      return true;
    }
    else
    {
      return false;
    }
    
  });
  
  
});