js按钮切换

function loadEvent(){    $(".JS_tabTit li,.JS_tabTit a").on("click",function(e) {        $(this).addClass("active").siblings().removeClass("active");        var index = $(".JS_tabTit li,.JS_tabTit a").index(this);        $(".JS_tabCon").eq(index).show().siblings().hide();    });    $(".aptitudeStyle li img").each(function() {        $(this).click(function() {            var src = $(this).attr(‘src‘);

            $("body").append(‘<div class="browseImg"></div>‘,‘<div class="bodyBg"></div>‘);            $(".browseImg").append("<img id=‘slin‘ width=‘150‘ height=‘186‘ src=‘"+src+"‘/>");            $("body").css("overflow","hidden");

            $(".bodyBg").click(function() {                $(".browseImg").html("");                $("body").css("overflow","");                $(".browseImg,.bodyBg").remove();            });

        });    });}

.browseImg {   position: fixed;   top: 50%;   left: 50%;   margin: -267px 0 0 -387px;   width: 714px;   height: 494px;   overflow: hidden;   border: 1px solid #666666;   background:#fff;   padding: 20px;   z-index: 999;}.browseImg span {   position: absolute;   top: 0;   right: 0;   display: block;   background:#fff url(../images/icon/pop_close.png) no-repeat center;   width: 25px;   height: 25px;   overflow: hidden;   cursor: pointer;}.browseImg img {   width:100%;   height: 100%;}.bodyBg {   position: fixed;   top:0;   left:0;   width: 100%;   height: 100%;   background:#a0a0a0;   filter:alpha(opacity=60);     -moz-opacity:0.6;     -khtml-opacity: 0.6;     opacity: 0.6;    z-index: 888; }