/*
 * requires:jQuery v1.7.1 later
 * name:jquery.SimpleSlide.js
 * author:Manabu Kushimoto(web-park.org)
 */
 
jQuery(function($){

	$.fn.extend({
		//メイン画像スライド切り替え
		mainSlide:function(options){
			var defaults={
				width:800,
				speed:300,
				interval:1000,
				on_class:"on"
			};
			var op=$.extend(defaults,options);
			var $t=$(this);
			var $target=$t.children();
			var len=$target.length;
			var con_len=len;
			var nav_num=0;
			var index=0;
			var past_index=0;
			var automove="";
			
			for(var m=0;m<(len*2);m++){
				$t.children().eq(m).clone(true).appendTo($t);
			}
			len=len*3;
	
			var center=Math.floor(len/2);
	
			for(var l=0;l<center;l++){
				$t.children().eq(len-1).prependTo($t);
			}

			$("div#slide_area div.frame").height();
			$t.width((op.width*len)+"px").css({position:"relative",left:-(op.width*center)+"px"}).fadeIn(600);

			function slideMove(direct){
				if(direct=="+"){
					var num=center+1;
					if(op.type=="main"){
						if(past_index>=(con_len-1)){
							past_index=0;
						}else{
							past_index=past_index+1;
						}
					}
				}else if(direct=="-"){
					var num=center-1;
				}
	
				$t.children().eq(num).find("img").not($t.children().eq(num)+":animated").animate({
					opacity:1
				},op.speed,"swing");
	
				$t.not($t+":animated").animate({
					left:-(op.width*num)+"px"
				},op.speed,"swing",function(){
					if(direct=="+") $(this).children().eq(0).appendTo($(this));
					if(direct=="-") $(this).children().eq((len-1)).prependTo($(this));
					$(this).css({left:-(op.width*center)+"px"});
				});

			};

			//prevをクリック
			$("div#slide_area").find("a[href='#prev']").click(function(){
				slideMove("-");
				clearInterval(automove);
				autoFN();
				return false;
			});
			
			//nextをクリック
			$("div#slide_area").find("a[href='#next']").click(function(){
				slideMove("+");
				clearInterval(automove);
				autoFN();
				return false;
			});
	
			//自動ループ
			function autoFN(){
				automove=setInterval(function(){
					slideMove("+");
				},op.interval,"swing");
			}
			autoFN();
	
		}
	});
	
	$("div#slide_area div.move").mainSlide({
		width:710,
		speed:1000,
		interval:10000,
		on_class:"active"
	});
	
});