日期:2014-05-16  浏览次数:20422 次

弹出对话框背景变灰问题
http://js.aiyiweb.com/a/2010092765156.shtml
打开的时候用小窗口,背景变灰后放大,这样的漏洞怎么去改?

------解决方案--------------------
在我的基础上加了你的透明背景。。
HTML code

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JS最简单的弹出窗口效果http://www.ok22.org</title>
<style type="text/css">
html,body{font-size:12px;margin:0px;height:100%;}
#BOX_overlay {background:#666;left:0;position:absolute;top:0;z-index:100;}/**遮罩层的样式**/
#layer_box {background:#fff;border:3px solid #000;position:absolute;display:none;z-index:999;width:600px;} /**弹出窗口的样式**/
.box_title {background:#FFF;border-bottom:1px solid #DDD;margin:10px 10px 0;padding:0 0 5px 20px;} /**关闭栏目**/
.box_title span {font-size:14px;font-weight:bold;}
.box_title a {color:#000;position:absolute;right:10px;top:10px;}
.box_content{padding:10px;margin:10px;}
</style>
<script>
function BOX_show(e,a)//显示
{
    if (document.getElementById(e) == null) {
        return;
    }
    
    if (!a) {
        var selects = document.getElementsByTagName('select');
        for (i = 0; i < selects.length; i++) {
            selects[i].style.visibility = "hidden";
        }
    }

    BOX_layout(e);
    window.onresize = function() { BOX_layout(e); } //改变窗体重新调整位置
    window.onscroll = function() { BOX_layout(e); } //滚动窗体重新调整位置
    document.onkeyup = function(event) {
        var evt = window.event || event;
        var code = evt.keyCode ? evt.keyCode : evt.which;
        //alert(code);

        if (code == 27) {
            BOX_remove(e);
        }
    }
}
function BOX_remove(e)//移除
{
    window.onscroll = null;
    window.onresize = null;
    document.getElementById('BOX_overlay').style.display = "none";
    document.getElementById(e).style.display = "none";

    var selects = document.getElementsByTagName('select');
    for (i = 0; i < selects.length; i++) {
        selects[i].style.visibility = "visible";
    }
}

function BOX_layout(e)//调整位置
{
    var a = document.getElementById(e);

    if (document.getElementById('BOX_overlay') == null)//判断是否新建遮掩层
    {

        var overlay = document.createElement("div");
        overlay.setAttribute('id', 'BOX_overlay');
        

        //overlay.onclick=function(){BOX_remove(e);};
        //a.parentNode.appendChild(overlay);
        document.body.appendChild(overlay);
    }
    document.getElementById('BOX_overlay').style.cssText="filter:alpha(opacity=0);-moz-opacity:0;opacity:0;"
    showBackground(document.getElementById('BOX_overlay'),50)
    document.getElementById('BOX_overlay').ondblclick = function() { BOX_remove(e); };
    //取客户端左上坐标,宽,高
    var scrollLeft = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);
    var scrollTop = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);

    var clientWidth;
    if (window.innerWidth) {
        clientWidth = window.innerWidth;
        //clientWidth = ((Sys.Browser.agent === Sys.Browser.Safari) ? window.innerWidth : Math.min(window.innerWidth, document.documentElement.clientWidth));
    }
    else {
        clientWidth = document.documentElement.clientWidth;
    }

    var clientHeight;
    if (window.innerHeight) {
        clientHeight = window.innerHeight;
        //clientHeight = ((Sys.Browser.agent === Sys.Browser.Safari) ? window.innerHeight : Math.min(window.innerHeight, document.documentElement.clientHeight));
    }
    else {
        clientHeight = document.documentElement.clientHeight;
    }

    var bo = document.getElementById('BOX_overlay');
    bo.style.left = scrollLeft