$(document).ready(function () {

	$('#plusadd ul a').click(function () {
	
		//reset all the items
		$('.customBlock ul a').removeClass('active');
		
		//set current item as active
		$(this).addClass('active');	
		
		//scroll it to the right position
		$('.mask').scrollTo($(this).attr('rel'), 300);
		
		//disable click event
	    return false;		
		
	});
	
		$('#oferta ul a').click(function () {
	
		//reset all the items
		$('.customBlock ul a').removeClass('active');
		
		//set current item as active
		$(this).addClass('active');	
		
		//scroll it to the right position
		$('.mask2').scrollTo($(this).attr('rel'), 300);
		
		//disable click event
	    return false;		
		
	});
	
	
		$('#portfolio ul a').click(function () {
	
		//reset all the items
		$('.customBlock ul a').removeClass('active');
		
		//set current item as active
		$(this).addClass('active');	
		
		//scroll it to the right position
		$('.mask3').scrollTo($(this).attr('rel'), 430);
		
		//disable click event
	    return false;		
		
	});
	
});