var Top_Data = function(option){
	var sets = {
		div_id: 'index_topbox',
		ul_id:	'index_topbox_ul'
	};
	
	$.extend(sets, option);
	
	var twidth 	= parseInt($("#" + sets.div_id).width());
	var theight = parseInt($("#" + sets.div_id).height());

	$("body").append('<div id="index_topbox_bt"></div>');	
	$("#index_topbox_bt").css({
		position	: 'absolute',
		width		: twidth - 10,
		height		: 20,
		top			: parseInt($("#" + sets.div_id).offset().top) + theight - 30,
		left		: $("#" + sets.div_id).offset().left,
		'text-align': 'right',
		padding		: '5px'	
	});
	
	
	//縮放視窗重新定位
	$(window).resize(function(){
		$("#index_topbox_bt").css({
			top			: parseInt($("#" + sets.div_id).offset().top) + theight - 30,
			left		: $("#" + sets.div_id).offset().left
		});
	});
	
	
	var i = 0;
	$("#" + sets.div_id).find("ul li").each(function(){
		var left = - (i * twidth), c = '';
		i++;
		(i == 1)? c = 'top_pic_focus': c = 'top_pic_default';
		$("#index_topbox_bt").append('<span class="move_bt ' + c + '" style="cursor:pointer;" leftval="' + left + '">&nbsp;</span>');
	});
		
	var topIntvalID = '';
	$(".move_bt").click(function(){
		$("#index_topbox_bt").find('.move_bt').attr('class', 'move_bt top_pic_default');
		$("#" + sets.ul_id).animate({left :$(this).attr('leftval')});	
		$(this).attr('class', 'move_bt top_pic_focus');		
	}).hover(
	function(){
		clearInterval(topIntvalID);
	},
	function (){
		topIntvalID = setInterval("Top_Data.auto()", 5000);
	});
	
	topIntvalID = setInterval("Top_Data.auto()", 5000);
};

Top_Data.auto = function(){
	if(!$("#index_topbox_bt").find(".top_pic_focus").next().attr('class')){
		$("#index_topbox_bt").find(".move_bt:eq(0)").trigger('click');
	}
	else{
		$("#index_topbox_bt").find(".top_pic_focus").next().trigger('click');
	}
};


/*
.top_pic_focus{
	margin:0px 3px 0px 3px;
	padding:0px 4px 0px 4px;
	border:1px solid #242424;
	color:#FFF;
	background:#242424;
	font-size:13px;
}

.top_pic_default{
	margin:0px 3px 0px 3px;
	padding:0px 4px 0px 4px;
	border:1px solid #CCC;
	color:#FFF;		
	background:#949494;
	font-size:13px;
}
*/