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javascripot div登陆提示框

 
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<html>
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312"/>
<title>greencss.com</title>
<scripttype="text/javascript">...
functionsAlert(str,stitle)...{
varmsgw,msgh,bordercolor;
msgw
=300;//提示窗口的宽度
msgh=100;//提示窗口的高度
titleheight=25//提示窗口标题高度
bordercolor="#336699";//提示窗口的边框颜色
titlecolor="#99CCFF";//提示窗口的标题颜色

varsWidth,sHeight;
sWidth
=document.body.offsetWidth;//浏览器工作区域内页面宽度
sHeight=screen.height;//屏幕高度(垂直分辨率)


//背景层(大小与窗口有效区域相同,即当弹出对话框时,背景显示为放射状透明灰色)
varbgObj=document.createElement("div");//创建一个div对象(背景层)
//
定义div属性,即相当于
//
<divid="bgDiv"style="position:absolute;top:0;background-color:#777;filter:progid:DXImagesTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75);opacity:0.6;left:0;width:918px;height:768px;z-index:10000;"></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=2,opacity=25,finishOpacity=75";
bgObj.style.opacity
="0.6";
bgObj.style.left
="0";
bgObj.style.width
=sWidth+"px";
bgObj.style.height
=sHeight*2+"px";
bgObj.style.zIndex
="10000";
document.body.appendChild(bgObj);
//在body内添加该div对象


varmsgObj=document.createElement("div")//创建一个div对象(提示框层)
//
定义div属性,即相当于
//
<divid="msgDiv"align="center"style="background-color:white;border:1pxsolid#336699;position:absolute;left:50%;top:50%;font:12px/1.6emVerdana,Geneva,Arial,Helvetica,sans-serif;margin-left:-225px;margin-top:npx;width:400px;height:100px;text-align:center;line-height:25px;z-index:100001;"></div>
msgObj.setAttribute("id","msgDiv");
msgObj.setAttribute(
"align","center");
msgObj.style.background
="white";
msgObj.style.border
="1pxsolid"+bordercolor;
msgObj.style.position
="absolute";
msgObj.style.left
="50%";
msgObj.style.top
="20%";
msgObj.style.font
="12px/1.6emVerdana,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";

vartitle=document.createElement("h4");//创建一个h4对象(提示框标题栏)
//
定义h4的属性,即相当于
//
<h4id="msgTitle"align="right"style="margin:0;padding:3px;background-color:#336699;filter:progid:DXImageTransform.Microsoft.Alpha(startX=20,startY=20,finishX=100,finishY=100,style=1,opacity=75,finishOpacity=100);opacity:0.75;border:1pxsolid#336699;height:18px;font:12pxVerdana,Geneva,Arial,Helvetica,sans-serif;color:white;cursor:pointer;"onclick="">关闭</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
="1pxsolid"+bordercolor;
title.style.height
="18px";
title.style.font
="12pxVerdana,Geneva,Arial,Helvetica,sans-serif";
title.style.color
="white";
title.style.cursor
="pointer";
title.innerHTML
="关闭";
title.onclick
=removeObj;

varbutton=document.createElement("input");//创建一个input对象(提示框按钮)
//
定义input的属性,即相当于
//
<inputtype="button"align="center"style="width:100px;align:center;margin-left:250px;margin-bottom:10px;"value="关闭">
button.setAttribute("type","button");
button.setAttribute(
"value","关闭");
button.style.width
="60px";
button.style.align
="center";
button.style.marginLeft
="250px";
button.style.marginBottom
="10px";
button.style.background
=bordercolor;
button.style.border
="1pxsolid"+bordercolor;
button.style.color
="white";
button.onclick
=removeObj;

functionremoveObj()...{//点击标题栏触发的事件
document.body.removeChild(bgObj);//删除背景层Div
document.getElementById("msgDiv").removeChild(title);//删除提示框的标题栏
document.body.removeChild(msgObj);//删除提示框层
}

document.body.appendChild(msgObj);
//在body内添加提示框div对象msgObj
document.getElementById("msgDiv").appendChild(title);//在提示框div中添加标题栏对象title

vartxt=document.createElement("p");//创建一个p对象(提示框提示信息)
//
定义p的属性,即相当于
//
<pstyle="margin:1em0;"id="msgTxt">测试效果</p>
txt.style.margin="1em0"
txt.setAttribute(
"id","msgTxt");
txt.innerHTML
="<ahref=http://www.myziy.com><imgborder=0src="+str+"></img></a>";//来源于函数调用时的参数值
document.getElementById("msgDiv").appendChild(txt);//在提示框div中添加提示信息对象txt
document.getElementById("msgDiv").appendChild(button);//在提示框div中添加按钮对象button
}


</script>
</head>

<body>
<ponclick="sAlert('logo.png','登录');">登陆</p>
</body>
</html>

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