$(document).ready(function() {

  // Header
  $('#ulHeaderRotate').innerfade({
    speed: 500,
    timeout: 10000,
    containerheight: '213px'
	});

  // Side Menu - hide 
  var currentCategory = '/'+$('body').attr('id')+'/';
  var visible = 0;
  $('#divSide > ul > li > ul').hide();
  $('#divSide > ul > li > a').each(function(){
    // Show appropriate submenu on load
    if ($(this).attr('href') == currentCategory) {
      $(this).addClass('on').siblings('ul').show();
      visible += 1;
    }
    // Handle parent category clicks
    if ($(this).siblings('ul').size() > 0) {
      $(this).click(function(){
        if ($(this).hasClass('on'))
          $(this).removeClass('on').siblings('ul').slideUp(250);
        else
          $(this).addClass('on').siblings('ul').slideDown(250);
        return false;
      });
    }
  });
  // Show first sub-menu if none are being shown
  if (visible == 0) $('#divSide > ul > li:eq(0) > ul').show().siblings('a').addClass('on');
  
  // Add extend button
  $('.divArticle .divExtended').prev('p').append('<a href="#extend" class="aExtend">Read Full Article &raquo;</a>').end().filter('.divPermalink').show().prev().children('.aExtend').hide();
  // Extend featured article preview
  $('.divArticle .aExtend').click(function(){
    $('.divExtended').slideDown(250, function(){
      $('.aExtend').fadeOut(100);
    });
    return false;
  });
  // Collapse featured article preview
  $('.divArticle .aCollapse').click(function(){
    $('.divExtended').slideUp(250, function(){
      $('.aExtend').fadeIn(100);
    });
    return false;
  });
  
  // Featured article read more links
  $('.divArticleSummary .aReadMore').each(function(){
    $(this).attr('href', $(this).parent('p').siblings('h3').children('a').attr('href'));
  });
  
  // Help out IE
  $('li:first-child').addClass('first-child');
  $('.ulArticleSimilar li:eq(1)').addClass('second-child');
  
  // SignUp Form - use labels and default value
  $('#formSignUp dl dt').each(function(){
  	$(this)
  	  .next('dd')
  	    .children('input')
  	      .val($('label', this).text())
	      .end()
      .end()
    .hide();
  });
  // Clear on focus
  $('#formSignUp dd input').focus(function(){
    if (!$(this).hasClass('updated'))
  	  $(this).val("").addClass('updated');
  });
  // Validate before submit
  var validForm = false;
  $('#formSignUp').submit(function(){
    validForm = true;
    if (!isValidEmailAddress($('#inpSignUpEmail').val())) {
  	  $('#inpSignUpEmail').addClass('invalid');
  	  validForm =  false;
	  }
  	if (($('#inpSignUpName').val() == "Enter Name here...")
  	      || ($('#inpSignUpName').val() == "")) {
  	  $('#inpSignUpName').addClass('invalid');
      validForm =  false;
	  }
    return validForm;
  });
  // Clear red labels when changed
  $('#formSignUp .inpText').change(function(){
    $(this).removeClass('invalid');
  });
  
  $("a[rel='external']").click(function(){this.target="_blank";});

});

function isValidEmailAddress(emailAddress) {
  var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
  return pattern.test(emailAddress);
}