添加回到顶部按钮

cmpInforShow.html

				</ul>
			</div>
			<div class="leftconBox floatL" style="padding-bottom: 40px;">
				<div id="item1user" class="leftconItem">
				<div id="item1user" class="leftconItem"style="background: #f4f6f8;">
					<div class="coninfobox needinfobox displayNone">
						<div class="coninfocon form-item needList">
							<ul class="form-need" id="showDemand">
						</div>
					</div>
					<!--无搜索结果-->
					<div class="nodatabox">
					<div class="nodatabox" style="background: #FFFFFF;">
				        <div class="nodata">
				            <div class="picbox picNull"></div>
				            <div class="txtbox">

css/genindex.css

.aboutPa .form-result ul.authorBox>li>a{max-width:80%;}
/*--------------新版需求相关--------------*/
.needinfobox.coninfobox{border-bottom:20px solid #F4F6F8;padding-bottom: 30px;}
.needinfobox.coninfobox{/*border-bottom:20px solid #F4F6F8;*/margin-bottom:20px;padding-bottom: 30px;}
/*.needList.form-item .madiaInfo{padding-left:0;}*/
.needList.form-item ul .h1Font{font-size: 18px;margin-bottom: 10px;line-height:24px;}
.needList.form-item ul .h2Font{font-size: 14px;line-height:24px;margin:8px 0;}

demandModify.html

				</div>
			</div>
		</div>
		<div class="footer_tools">
		  <a id="scrollUp" href="javascript:;" title="返回顶部"></a>
		</div>
		<footer>
			<script type="text/javascript" src="js/footer.js"></script>
		</footer>
		<script type="text/javascript" src="js/jquery.page.js"></script>
		<script src="js/city.min.js" type="text/javascript" charset="utf-8"></script>
		<script type="text/javascript" src="js/common.js"></script>
	</body>
	<script src="js/demandModify.js"></script>
	<script type="text/javascript">
		$(function () {
			//回到顶部
			var $body = $(document.body);;
			var $bottomTools = $('.footer_tools');
			$(window).scroll(function () {
				var scrollHeight = $(document).height();
				var scrollTop = $(window).scrollTop();
				var $footerHeight = $('footer').outerHeight(true);
				var $windowHeight = $(window).innerHeight();
				scrollTop > 50 ? $("#scrollUp").fadeIn(200).css("display","block") : $("#scrollUp").fadeOut(200);			
				$bottomTools.css("bottom", scrollHeight - scrollTop - $footerHeight > $windowHeight ? 20 : $windowHeight + scrollTop + $footerHeight + 20 - scrollHeight);
			});
			$('#scrollUp').click(function (e) {
				e.preventDefault();
				$('html,body').animate({ scrollTop:0});
			});
		})
	</script>
	</body>
</html>

js/demandModify.js

			"success": function(data) {
				if(data.success) {
					var $data = data.data;
					var demandTit =$data.title + "-科袖网";
					document.title = demandTit;
					$("#demandTitle").text($data.title);
					$("#publishTime").text(commenTime($data.createTime));
					$("#pageView").text($data.pageViews);
					$("#budget").val($data.duration);
					$("#createTime").val(changeTime($data.invalidDay));
					$("#phone").val($data.contactNum);
					if($data.cost == 0) {
						$("#spendCost").css("color", "#999");
					}
					if($data.duration ==0) {
						$("#budget").css("color", "#999");
					}
					//省份城市颜色
					if($("#oprovince").text() == "请选择省/直辖市") {
						$("#oprovince").removeClass("mr_select");
					} else {
						$("#oprovince").addClass("mr_select");
					}
					if($("#ocity").text() == "请选择城市") {
						$("#ocity").removeClass("mr_select");
					} else {
						$("#ocity").addClass("mr_select");
					}
				}
			},
			"error": function() {

postDemand.html

				padding: 30px;
			}
			.postUl select{color:#999;}
			.postUl>.postChildE{padding-top: 40px;}
			.postUl .frmcontype{width: 98%;color:#666;}
			.postCenter>button{width: 140px; outline:none;}
			.postUss{padding:10px 20px;font-size: 14px;text-align:justify}
			.postUl>li>.spanR{right: 12px;}
			.postUl .msgContbox textarea{height: 300px;}
		</style>
		<script type="text/javascript" src="js/jquery-1.11.1.js"></script>
	</head>
		</div>
		<!--mian end-->
		<!--footer-->
		<div class="footer_tools">
		  <a id="scrollUp" href="javascript:;" title="返回顶部"></a>
		</div>
		<footer>
			<script type="text/javascript" src="js/footer.js"></script>
		</footer>
		<!--end footer-->
		<!--<div class="footer_tools">
			<a id="scrollUp" href="javascript:;" title="返回顶部"></a>
		</div>-->
		<script type="text/javascript" src="js/jquery.cookie.js"></script>
		<script type="text/javascript" src="cmp-portal/js/public/bootstrap.min.js"></script>
		<script type="text/javascript" src="js/jquery.page.js"></script>
		<script src="js/city.min.js" type="text/javascript" charset="utf-8"></script>
		<script type="text/javascript" src="js/common.js"></script>
	</body>
	<script src="js/postDemand.js"></script>
	<script type="text/javascript">
		$(function () {
			//回到顶部
			var $body = $(document.body);;
			var $bottomTools = $('.footer_tools');
			$(window).scroll(function () {
				var scrollHeight = $(document).height();
				var scrollTop = $(window).scrollTop();
				var $footerHeight = $('footer').outerHeight(true);
				var $windowHeight = $(window).innerHeight();
				scrollTop > 50 ? $("#scrollUp").fadeIn(200).css("display","block") : $("#scrollUp").fadeOut(200);			
				$bottomTools.css("bottom", scrollHeight - scrollTop - $footerHeight > $windowHeight ? 20 : $windowHeight + scrollTop + $footerHeight + 20 - scrollHeight);
			});
			$('#scrollUp').click(function (e) {
				e.preventDefault();
				$('html,body').animate({ scrollTop:0});
			});
		})
	</script>
</body>
</html>

userInforShow.html

				</ul>
			</div>
			<div class="leftconBox floatL">
				<div id="item1user" class="leftconItem">
				<div id="item1user" class="leftconItem"style="background: #f4f6f8;">
				    <div class="coninfobox needinfobox displayNone">
						<div class="coninfocon form-item needList">
							<ul class="form-need" id="showDemand">
						</div>
					</div>
					<!--无搜索结果-->
					<div class="nodatabox">
					<div class="nodatabox" style="background: #FFFFFF;">
				        <div class="nodata">
				            <div class="picbox picNull"></div>
				            <div class="txtbox">