$(document).ready(function() { 
	//initialize
	var port_sites		=	$('.splash_right ul > li');
	var port_size		=	port_sites.length - 1;
	
	//hide others
	$('li:not(:first)',port_sites).hide();
	var	port_cur		=	0;
	
	$('.splash_portfolio_controls_prev').click(function(){
		if(port_cur > 0)
			goBackward();
		else
			goToEnd();
		return false;
	});
	$('.splash_portfolio_controls_next').click(function(){
		if(port_cur < port_size)
			goForward();
		else
			goToStart();
		return false;		
	});
	
	//functions to move
	function goForward(dir) {
		$('.splash_portfolio li:visible').hide().next('li:first').show('slide',{direction:'right'});
		port_cur++;
	}
	
	function goBackward(dir) {
		$('.splash_portfolio li:visible').hide().prev('li:first').show('slide',{direction:'left'});
		port_cur--;
	}
	
	function goToStart()	{
		$('.splash_portfolio li:visible').hide();
		$('.splash_portfolio li:first').show('slide',{direction:'right'});
		port_cur = 0;
	}
	
	function goToEnd() {
		$('.splash_portfolio li:visible').hide();
		$('.splash_portfolio li:last').show('slide',{direction:'left'});
		port_cur = port_size;
	}
});