javascript弹出层的例子(A Cool Pop up by JS)

weixin_30781631

于 2008-05-26 10:28:00 发布

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/blodfox777/archive/2008/05/26/1207337.html

本文介绍了一种利用HTML、CSS及JavaScript实现的简易模态对话框，通过鼠标悬停事件触发显示，适用于简单的提示场景。该方法代码简洁，但扩展性有限。

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代码如下：

<html>

<head>

</head>

<body>

<a href="1.htm" onmouseover="sAlert('hello');" >Hi move here</a>

<script type="text/javascript" language="javascript">

function sAlert(str)

{

var msgw,msgh,bordercolor;

msgw=400;//Width

msgh=100;//Height

titleheight=25 //title Height

bordercolor="#336699";//boder color

titlecolor="#99CCFF";//title color

var sWidth,sHeight;

sWidth=document.body.offsetWidth;

sHeight=screen.height;

var bgObj=document.createElement("div");

bgObj.setAttribute('id','bgDiv');

bgObj.style.position="absolute";

bgObj.style.top="0";

bgObj.style.background="#777";

bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";

bgObj.style.opacity="0.6";

bgObj.style.left="0";

bgObj.style.width=sWidth + "px";

bgObj.style.height=sHeight + "px";

bgObj.style.zIndex = "10000";

document.body.appendChild(bgObj);

var msgObj=document.createElement("div")

msgObj.setAttribute("id","msgDiv");

msgObj.setAttribute("align","center");

msgObj.style.background="white";

msgObj.style.border="1px solid " + bordercolor;

msgObj.style.position = "absolute";

msgObj.style.left = "50%";

msgObj.style.top = "50%";

msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";

msgObj.style.marginLeft = "-225px" ;

msgObj.style.marginTop = -75+document.documentElement.scrollTop+"px";

msgObj.style.width = msgw + "px";

msgObj.style.height =msgh + "px";

msgObj.style.textAlign = "center";

msgObj.style.lineHeight ="25px";

msgObj.style.zIndex = "10001";

var title=document.createElement("h4");

title.setAttribute("id","msgTitle");

title.setAttribute("align","right");

title.style.margin="0";

title.style.padding="3px";

title.style.background=bordercolor;

title.style.filter="progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);";

title.style.opacity="0.75";

title.style.border="1px solid " + bordercolor;

title.style.height="18px";

title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif";

title.style.color="white";

title.style.cursor="pointer";

title.innerHTML="Close";

title.onclick=function()

{

document.body.removeChild(bgObj);

document.getElementById("msgDiv").removeChild(title);

document.body.removeChild(msgObj);

}

document.body.appendChild(msgObj);

document.getElementById("msgDiv").appendChild(title);

var txt=document.createElement("p");

txt.style.margin="1em 0"

txt.setAttribute("id","msgTxt");

txt.innerHTML=str;

document.getElementById("msgDiv").appendChild(txt);

}

</script>

</body>

</html>

优点：模态对话框，效果不错，最重要的是代码少
缺点：使用文本做输入参数，而没有使用DIV等对象，扩展性比较局限

转载于:https://www.cnblogs.com/blodfox777/archive/2008/05/26/1207337.html

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