javascript 仿QQ/MSN右下角广告代码

weixin_30879833

于 2019-08-02 01:38:03 发布

阅读量120

点赞数

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/hayden/archive/2009/07/31/1535728.html

本文介绍了一个使用JavaScript实现的右下角广告代码，该代码通过动态调整位置和透明度，使得广告框能够在网页中平滑地出现和消失。文章详细解释了代码的工作原理，包括窗口加载和调整大小时广告框的位置更新。

<Script language="javascript">
<!--
window.onload = getMsg;
window.onresize = resizeDiv;
window.onerror = function(){};
//短信提示使用(asilas添加)
var divTop, divLeft, divWidth, divHeight, docHeight, docWidth, objTimer, i = 0;
/**
* 获取信息框和屏幕位置等参数, 并初始化信息框位置
*/
function getMsg()
{
try{
divTop = parseInt(document.getElementById("eMeng").style.top, 10);
divLeft = parseInt(document.getElementById("eMeng").style.left, 10);
divHeight = parseInt(document.getElementById("eMeng").offsetHeight, 10);
divWidth = parseInt(document.getElementById("eMeng").offsetWidth, 10);

docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;

document.getElementById("eMeng").style.top = parseInt(document.body.scrollTop, 10) + docHeight + 10;// divHeight
document.getElementById("eMeng").style.left = parseInt(document.body.scrollLeft, 10) + docWidth - divWidth;
document.getElementById("eMeng").style.visibility="visible";
objTimer = window.setInterval("moveDiv()", 10);
} catch(e) {
}
}

/**
* 用于设置判断信息框停留时间, 以及窗口大小或位置改变时信息框的位置设置
*/
function resizeDiv()
{
i += 1; // 用于保存计算信息框停留的时间
if (i > 1300) {
closeDiv(); // 客户想不用自动消失由用户来自己关闭所以屏蔽这句
}
try{ // 此代码仅当在窗口变化时可起作用, 而不使信息框消失等

divHeight = parseInt(document.getElementById("eMeng").offsetHeight, 10);
divWidth = parseInt(document.getElementById("eMeng").offsetWidth, 10);
docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;
document.getElementById("eMeng").style.top = docHeight - divHeight + parseInt(document.body.scrollTop, 10);
document.getElementById("eMeng").style.left = docWidth - divWidth + parseInt(document.body.scrollLeft, 10);
} catch(e) {
}
}

/**
* 控制窗口渐渐上升显示
*/
function moveDiv()
{
try {
if(parseInt(document.getElementById("eMeng").style.top, 10) <= (docHeight - divHeight +
parseInt(document.body.scrollTop, 10))) {
window.clearInterval(objTimer);
objTimer = window.setInterval("resizeDiv()", 1);
}
divTop = parseInt(document.getElementById("eMeng").style.top, 10);
document.getElementById("eMeng").style.top = divTop - 1;
} catch (e){
}
}

/**
* 关闭信息框
*/
function closeDiv()
{
document.getElementById('eMeng').style.visibility = 'hidden';
if (objTimer) {
window.clearInterval(objTimer);
}
}
-->
</Script>
<DIV id=eMeng style="BORDER-RIGHT: #455690 1px solid; BORDER-TOP: #a6b4cf 1px solid; Z-INDEX:99999; LEFT: 0px; VISIBILITY: hidden; BORDER-LEFT: #a6b4cf 1px solid; WIDTH: 180px; BORDER-BOTTOM: #455690 1px solid; POSITION: absolute; TOP: 0px; HEIGHT: 116px; BACKGROUND-COLOR: #c9d3f3">
<TABLE style="BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid" cellSpacing=0 cellPadding=0 width="100%" bgColor=#AFDCF3 border=0>
<TBODY>
<TR bgColor=#6699cc>
<TD style="font-size: 12px; background-image: url('images/msgTopBg.gif'); color: #0f2c8c" width=30 height=24></TD>
<TD style="font-weight: normal; font-size: 12px; background-image: url('images/msgTopBg.gif'); color: #ffffff; padding-left: 4px; padding-top: 4px" vAlign=center width="100%"><font color="red">右下角广告代码</font></TD>
<TD style="background-image: url('images/msgTopBg.gif'); padding-right: 2px; padding-top: 2px" vAlign=center align=right width=19><span title=关闭 style="CURSOR: hand;color:white;font-size:12px;font-weight:bold;margin-right:4px;" onclick=closeDiv() >×</span></TD>
</TR>
<TR>
<TD style="background-image: url('UploadFiles/200510822587734.jpg'); padding-right: 1px; padding-bottom: 1px" colSpan=3 height=90>
<DIV style="BORDER-RIGHT: #b9c9ef 1px solid; PADDING-RIGHT: 13px; BORDER-TOP: #728eb8 1px solid; PADDING-LEFT: 13px; FONT-SIZE: 12px; PADDING-BOTTOM: 13px; BORDER-LEFT: #728eb8 1px solid; WIDTH: 100%; COLOR: #1f336b; PADDING-TOP: 18px; BORDER-BOTTOM: #b9c9ef 1px solid; HEIGHT: 100%">分享个人的JavaScript学习经历, 做最好的JavaScript资料分享站点<BR>
<DIV align=center style="word-break:break-all"><a href="http://www.ijavascript.cn" target="_blank">
<font color=#FF0000>爱JavaScript中文网</font></a></DIV>

</DIV>
</TD>
</TR>
</TBODY>
</TABLE>
</DIV>

转载于:https://www.cnblogs.com/hayden/archive/2009/07/31/1535728.html