$("document").ready(function(){
	/***不需要自动滚动，去掉即可***/
	/*var time = window.setinterval(function(){
		$('.clalistright').click();	
	},5000);
	$('.clalistullist').mouseover(function() {
			clearinterval(time);
		});
	$('.picleft').mouseover(function() {
			clearinterval(time);
		});
	$('.clalistright').mouseover(function() {
			clearinterval(time);
		});	
	$('.clalistullist').mouseout(function(){
		  time = window.setinterval(function(){
			$('.clalistright').click();	
		 },5000);
	});
	$('.picleft').mouseout(function(){
		  time = window.setinterval(function(){
			$('.clalistright').click();	
		 },5000);
	});
	$('.clalistright').mouseout(function(){
		  time = window.setinterval(function(){
			$('.clalistright').click();	
		 },5000);
	});*/
	/***不需要自动滚动，去掉即可***/
	var page=1;
	var i=1;
	var box=$('.clalistullist');
	var h=$('.clalistullist li').width()+12;
	var pagetotal= $('.clalistullist li').length;
	//alert(pagetotal*h);
	$(".clalistullist").css("width",pagetotal*h+"px");
	$('.htmlpic2').css({left: pagetotal*h+"px"});
	$('.htmlpic2').html($('.htmlpic1').html());//复制内容
    //document.getelementbyid("a").innerhtml =  document.getelementbyid("b").innerhtml;
    w = pagetotal*200;
   
	$('.clalistleft').bind('click',upwardsfn);
	$('.clalistright').bind('click',downfn);	
	function upwardsfn(){
		/*
		if($('.htmlpic1,.htmlpic2').is(':animated')){
			$('.htmlpic1,.htmlpic2').stop(true,true);
		}*/
		/*if(page>1){
			box.animate({ marginleft : '+='+h }, "slow");
			page--;
		}*/
		if($('.htmlpic2,.htmlpic1').is(':animated')){
			$('.htmlpic2,.htmlpic1').stop(true,true);
		}
		if(($('.clalistullist li').length/2)>3){//多于4张图片
			ml = parseint($('.htmlpic1').css('left'));
			sl = parseint($('.htmlpic2').css('left'));
		   // alert(ml);
			if(ml<=0 && ml>w*-1){
				if(ml==0){
					$('.htmlpic2').css({left: w * -1 + 'px'});
					sl = parseint($('.htmlpic2').css('left'));
				}
				$('.htmlpic2').animate({left: sl + 200 + 'px'},'slow');
				$('.htmlpic1').animate({left: ml + 200 + 'px'},'slow');				
			}else{
				if(sl==0){
					$('.htmlpic1').css({left: w * -1 + 'px'});
					ml = parseint($('.htmlpic1').css('left'));
				}
				$('.htmlpic1').animate({left: ml + 200 + 'px'},'slow');			
				$('.htmlpic2').animate({left: sl + 200 + 'px'},'slow');
			}
		}
	}
	function downfn(){
		/*
		if(pagetotal>page){
			box.animate({ marginleft : '-='+h }, "slow");
			page++;
		}*/
		if($('.htmlpic1,.htmlpic2').is(':animated')){
			$('.htmlpic1,.htmlpic2').stop(true,true);
		}
		if(($('.clalistullist li').length/2)>3){//多于4张图片
			ml = parseint($('.htmlpic1').css('left'));//默认图片ul位置
			sl = parseint($('.htmlpic2').css('left'));//交换图片ul位置
			if(ml<= 1000 && ml>w*-1){//默认图片显示时
			    if(ml+w == 1000){//交换图片最后一屏时
					$('.htmlpic2').css({left:'1000px'})//默认图片放在显示区域右
					sl = parseint($('.htmlpic2').css('left'));
				}
				$('.htmlpic1').animate({left: ml - 200 + 'px'},'slow');//默认图片滚动	
				$('.htmlpic2').animate({left: sl - 200 + 'px'},'slow');//交换图片滚动
			}else{//交换图片显示时
				if(sl+w == 1000){//交换图片最后一屏时
					$('.htmlpic1').css({left:'1000px'})//默认图片放在显示区域右
					ml = parseint($('.htmlpic1').css('left'));
				}
				$('.htmlpic1').animate({left: ml - 200 + 'px'},'slow');//默认图片滚动	
				$('.htmlpic2').animate({left: sl - 200 + 'px'},'slow');//交换图片滚动
			}
		}

	}

});