老生常谈遮罩层 滚动条的问题_javascript技巧

<script type="text/javascript"> 

//显示灰色JS遮罩层 

function showBg(ct,content){

 

var bH=$(document).height(); 

var bW=$("body").width()+16; 

var objWH=getObjWh(ct); 

$("#fullbg").css({width:bW,height:bH,display:"block"}); 

var tbT=objWH.split("|")[0]+"px"; 

var tbL=objWH.split("|")[1]+"px"; 

$("#dialog").show();

$("#"+ct).css({top:tbT,left:tbL,display:"block"}); 

 

$(window).scroll(function(){resetBg()}); 

$(window).resize(function(){resetBg()}); 

} 

function getObjWh(obj){ 

var st=document.documentElement.scrollTop;//滚动条距顶部的距离 

var sl=document.documentElement.scrollLeft;//滚动条距左边的距离 

var ch=document.documentElement.clientHeight;//屏幕的高度 

var cw=document.documentElement.clientWidth;//屏幕的宽度 

var objH=$("#"+obj).height();//浮动对象的高度 

var objW=$("#"+obj).width();//浮动对象的宽度




var objT=Number(st)+(Number(ch)-Number(objH))/2; 

var objL=Number(sl)+(Number(cw)-Number(objW))/2; 

return objT+"|"+objL; 

} 

function resetBg(){ 

var fullbg=$("#fullbg").css("display"); 

if(fullbg=="block"){ 

var bH2=$("body").height(); 

var bW2=$("body").width()+16; 

$("#fullbg").css({width:bW2,height:bH2}); 

var objV=getObjWh("dialog"); 

var tbT=objV.split("|")[0]+"px"; 

var tbL=objV.split("|")[1]+"px"; 

$("#dialog").css({top:tbT,left:tbL}); 

} 

} 




//关闭灰色JS遮罩层和操作窗口

function closeBg(){ 

$("#fullbg").css("display","none"); 

$("#dialog").css("display","none");

} 




</script>

#fullbg{ 

background-color: Gray; 

display:none; 

z-index:3; 

left:0px; 

opacity:0.5; top:0; left:0;height:100%; width:100%; z-index:999; position:fixed; _position:absolute; _left: expression_r(documentElement.scrollLeft + documentElement.clientWidth - this.offsetWidth); _top: expression_r(documentElement.scrollTop + documentElement.clientHeight - this.offsetHeight);

filter:Alpha(Opacity=30); 

opacity: 0.3; 

} 




#dialog { 

width:560px; 

background:#eee; 

display: none; 

z-index: 5; 

padding:16px;

font-size:12px;

z-index:1000; position:absolute;

}

#dialog sup{ color:#f00;}

#dialog .close0{ position:relative; top:-24px; left:544px; height:38px; width:40px;}

<div id="fullbg"></div> 

<!-- end JS遮罩层 --> 

<!-- 对话框 --> 

<div id="dialog">

<div class="close0"><a href="#" onclick="closeBg();"><img  src="__IMG__/close.png" / alt="老生常谈遮罩层 滚动条的问题_javascript技巧" ></a></div> 

<div id="dialog_content">

<h3>个人信息</h3>

<p>(备注：以下信息我们只用于根据需要给您发送相关服务材料，不会对外泄密，敬请理解)</p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/ai/2221">
                            <img src="https://img.php.cn/upload/ai_manual/001/246/273/68b6c52f05eb9477.png" alt="巧文书">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/ai/2221">巧文书</a>
                            <p>巧文书是一款AI写标书、AI写方案的产品。通过自研的先进AI大模型，精准解析招标文件，智能生成投标内容。</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="巧文书">
                                <span>61</span>
                            </div>
                        </div>
                        <a href="/ai/2221" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="巧文书">
                        </a>
                    </div>
                <p><span>立即学习</span>“<a href="https://pan.quark.cn/s/c1c2c2ed740f" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">Java免费学习笔记（深入）</a>”；</p>

<table width="555" border="0" cellspacing="1" cellpadding="0" class="yh_table">

       <tr>

        <td width="65" bgcolor="#eeeeee"><sup>*</sup>用户ID</td>

        <td width="100" bgcolor="#fbfbfb"><b>{$member.MEMBER_NAME}</b></td>

        <td width="65" bgcolor="#eeeeee"><sup>*</sup>真实姓名</td>

        <td width="80" bgcolor="#fbfbfb"><b>{$info.NAMES}</b></td>

        <td width="60" bgcolor="#eeeeee">性别</td>

        <td bgcolor="#fbfbfb"><b><php>echo $gender[$info['GENDER']];</php></b></td>

       </tr>

       <tr>

        <td bgcolor="#eeeeee"><sup>*</sup>手机号码</td>

        <td bgcolor="#fbfbfb"><b>{$info.TELEPHONE}</b></td>

        <td bgcolor="#eeeeee">电子邮箱</td>

        <td colspan="3" bgcolor="#fbfbfb"><b>{$member.EMAIL}</b></td>

       </tr>

       <tr>

        <td colspan="2" bgcolor="#eeeeee"><sup>*</sup>有效证件（身份证）</td>

        <td colspan="4" bgcolor="#fbfbfb"><b>{$info.IDS}</b></td>

       </tr>

       <tr>

        <td bgcolor="#eeeeee">通讯地址</td>

        <td colspan="3" bgcolor="#fbfbfb"><b>{$info.ADDRESS}</b></td>

        <td bgcolor="#eeeeee">邮编</td>

        <td bgcolor="#fbfbfb"><b>{$info.ZIPS}</b></td>

       </tr>

      </table>

</div> 




</div>