var sildeMain_code = Array(
	'<a href="http://www.iwate-ginpla.net/info/index.html"><img src="img_new/top_main01.jpg" width="690" height="450" alt="いわて銀河プラザ" /></a>',
	'<img src="img_new/top_main02.jpg" alt="食のいやし" width="690" height="384" />',
	'<img src="img_new/top_main03.jpg" alt="風土のいやし" width="690" height="384" />',
	'<img src="img_new/top_main04.jpg" alt="歴史・文化のいやし" width="690" height="384" />',
	'<img src="img_new/top_main05.jpg" alt="人のいやし" width="690" height="384" />',
	'<a href="http://www.iwate-ginpla.net/info/index.html"><img src="img_new/top_main01.jpg" width="690" height="384" alt="いわて銀河プラザ" /></a>'
	);

var li_index = 0;
var mainimg_url = '';
var slide_now_num = -1;
var start_rot_time = 3000;
var rot_time = 7500;
var anime_time_in = 1300;
var anime_time_out = 900;
	
$(document).ready(function(){
	var slideNavi_li = $('#slideNavi li');
	slideNavi_li.addClass('now');
	var slideNavi_num = slideNavi_li.length;
	var slideMain = $('#slideMain');
	var start_flag = 1;
	start_slideInterval = setInterval( auto_rot , start_rot_time );
	var default_num = 4;
	slideNavi_li.hover(
		function(){
			slide_now_num = $(this).index();
			rot_main( slide_now_num , 0.4);
			clearInterval( slideInterval );
			clearInterval( start_slideInterval );
			slideNavi_li.removeClass('now');
			$(this).addClass('now');
		},
		function(){
			clearInterval( slideInterval );
			clearInterval( start_slideInterval );
			slideInterval = setInterval( auto_rot , rot_time );
		}
	);

	$('.demo').hover(
	function(){
			clearInterval( slideInterval );
			clearInterval( start_slideInterval );
	},
	function(){
		if( slide_now_num == 4 || default_num == 4 ){
		}else{
			clearInterval( slideInterval );
			clearInterval( start_slideInterval );
			rot_main( 4 , 0.5);
			slide_now_num--;
			default_num = 4;
			slideNavi_li.addClass('now');
			slideInterval = setInterval( auto_rot , rot_time );
		}
	}
	);

	slideMain.hover(
		function(){
			clearInterval( slideInterval );
		},
		function(){
			clearInterval( slideInterval );
			slideInterval = setInterval( auto_rot , rot_time );
		}
	);

	function rot_main(index ,time){
		if(!time){
			time=1;
		}
		slideMain.stop().fadeTo( anime_time_out*time , 0.01 , function(){
			$(this).fadeTo( anime_time_in*time , 1 ).html( sildeMain_code[index+1] );
		});
		default_num = slide_now_num;
	}

	function auto_rot(){
		if( start_flag == 1 ){
			clearInterval( start_slideInterval );
			slideInterval = setInterval( auto_rot , rot_time );
		}
		start_flag = 0;
		slide_now_num++;
		if( slide_now_num > slideNavi_num ){
			slide_now_num = 0;
		}
		if( slide_now_num == 4){
			slideNavi_li.addClass('now');
		}else{
			slideNavi_li.removeClass('now');
		}
		$('#slideNavi li:eq('+ slide_now_num +')').addClass('now');
		rot_main( slide_now_num );
	}

});