// JavaScript Document


var cs_home_total = 12;


$(document).ready(function(){

var cs_home_start =Math.floor(Math.random()*cs_home_total)	;

document.getElementById('cs_start').innerHTML = cs_home_start;

document.getElementById('case-study'+cs_home_start).style.display = '';


$('#cs_curtain').fadeOut(400);



});

	
	
var cs_next = function() {

var curr = document.getElementById('cs_start').innerHTML;

if(curr<cs_home_total) { var target = eval(curr)+1; } else { var target = 0; }

$('#cs_curtain').fadeIn(200, function(){ 
									  document.getElementById('case-study'+curr).style.display = 'none';
									  document.getElementById('case-study'+target).style.display = '';
									  $('#cs_curtain').fadeOut(200);});

//$('#case-study'+curr).fadeOut(100, function() {  $('#case-study'+target).fadeIn(100); });

document.getElementById('cs_start').innerHTML = target;
}


var cs_prev = function() {

var curr = document.getElementById('cs_start').innerHTML;

if(curr>2) { var target = eval(curr)-1; } else { var target = cs_home_total; }

$('#cs_curtain').fadeIn(200, function(){ 
									  document.getElementById('case-study'+curr).style.display = 'none';
									  document.getElementById('case-study'+target).style.display = '';
									  $('#cs_curtain').fadeOut(200);});

//$('#case-study'+curr).fadeOut(100, function() {  $('#case-study'+target).fadeIn(100); });

document.getElementById('cs_start').innerHTML = target;
}