// JavaScript Document

var interval   = 5000;
var timer;
var current    = 0;
var last_current = -1;
var nmb_items = 0;
var tabs;
var total;

$(document).ready(function() {
	nmb_items = $('#feature_menu_column > .feature_title').length;
	tabs = $('#feature_menu_column > .feature_title');
	images = $('#portfolio_feature > .noshow');
	if(nmb_items==1) {
		showOne();
	} else {
		play();
	}
	
});

function showOne() {
	current++;
	$(images[current-1]).css({'opacity':0});
	$(images[current-1]).removeClass('noshow');
	$(images[current-1]).addClass('show');
	$(images[current-1]).animate({'opacity':1},1000);
}


function play() {
	next();
	timer = setInterval(next,interval)
}

function next() {
	current++;
	if(current > nmb_items){
 		current   = 1;
 	} else if(current < 1) {
  		current   = nmb_items;
 	}
	if(last_current != -1) {
		$(images[last_current-1]).removeClass('show');
		$(images[last_current-1]).addClass('noshow');
		$(tabs[last_current-1]).removeClass('feature_title_selected');
		$(tabs[last_current-1]).addClass('feature_title');
	}
	$(images[current-1]).css({'opacity':0});
	$(images[current-1]).removeClass('noshow');
	$(images[current-1]).addClass('show');
	$(images[current-1]).animate({'opacity':1},1000);
 	$(tabs[current-1]).addClass('feature_title_selected');
 	$(tabs[current-1]).removeClass('feature_title');
	last_current = current;
}