消息提示弹层滚动JQUERRY

/*風*/var Life={};Life.pmLoad=function(){$.getJSON('json.js', function(d){ if(d&&d.res=='ok'){ if(d.count>0){var arr=new Array();i=0;for( a in d.data ){var r=d.data[a];arr.push('<div class="fuc_news" id="life_pm_'+r.logid+'">');arr.push('<span class="fc_tit">');arr.push('<span class="tit_l">【最新消息】</span>');arr.push('<span class="tit_r" >X</span>');arr.push('</span>');arr.push('<div class="fc_con clearfixs">');if(r.url&&r.url!=''){arr.push('<a href="'+r.url+'" target="_blank" onclick="Life.pmClick('+r.logid+')">'+r.msg+'</a>');}else{arr.push('<a href="home.php?mod=space&do=pm&subop=view&touid=1#bottom" target="_blank" >'+r.msg+'</a>');}arr.push('</div></div>');i++;}Life.Num=i;$('#pmWrapHtml').html(arr.join(''));Life.pmGo(); } } });}Life.pmClose=function(id){$('#life_pm_'+id).hide();}Life.pmClick=function(id){$.get("index.php?r=pm/click&id="+id);}Life.pmGo=function(){var s_top=0;var s_p=0;var PmNum=0;//浏览器高度var browserHeight=$(window).height();//HTML高度var tmphtmlHeight=htmlHeight=Life.Num*98;//滚动外框高度var floatNewsBoxsHeight=browserHeight;var PmHtml=$('#pmWrapHtml');var PmWap=$("#pmWrap");$("#pmWrapHtml div.fuc_news").each(function(){tmphtmlHeight=tmphtmlHeight-98;$(this).css("top",tmphtmlHeight+"px");});PmWap.height(floatNewsBoxsHeight).show();PmHtml.css('height',htmlHeight+'px').css('top',floatNewsBoxsHeight+'px').animate({'top':(floatNewsBoxsHeight-htmlHeight)+'px'},Life.Num*0.5*1000);//关闭层$("#pmWrapHtml div.fuc_news .fc_tit .tit_r").click(function(){var tParent=$(this).parent().parent();tParent.hide();s_p=tParent.index();PmNum++;tmphtmlHeight=Life.Num*98;for (var i=0;i<Life.Num;i++){tmphtmlHeight=tmphtmlHeight-98;if(i<=s_p){continue;}$("#pmWrapHtml div.fuc_news:eq("+i+")").animate({'top':(tmphtmlHeight+PmNum*98)+'px'});}});//浏览器滚动s_top= PmWap.css("top");$(window).scroll(function(){var ss_top=parseInt(s_top);var sc_top=$(this).scrollTop();var su_top=ss_top+sc_topPmWap.css("top",su_top+"px")});}$(document).ready(function(){Life.pmLoad();})

案例地址：http://download.csdn.net/detail/wljk506/5166607