$(document).ready(function() {
	hideall();
  $('#NavC1').click(function(){
		hideall();
		$('.NavC1_Content').fadeIn('normal');
	});
  $('#NavC2').click(function(){
		hideall();
		$('.NavC2_Content').fadeIn('normal');
	});
  $('#NavC3').click(function(){
		hideall();
		$('.NavC3_Content').fadeIn('normal');
	});
  $('#NavC4').click(function(){
		hideall();
		$('.NavC4_Content').fadeIn('normal');
	});
	
	$('.NavC1_Content_active').show();
	$('.NavC2_Content_active').show();
	$('.NavC3_Content_active').show();
	$('.NavC4_Content_active').show();

 });
 
 function hideall(){
	$('.NavC1_Content').hide();
	$('.NavC2_Content').hide();
	$('.NavC3_Content').hide();
	$('.NavC4_Content').hide();
 }