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javascript 模擬 alert 並能在彈出框中顯示背景圖片,後臺代碼繼續運行

<!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" xml:lang="zh-CN" lang="zh-CN">

<head>

<meta name="verify-v1" content="P4T6fFCiPVxqMWZ2eztyXVzMHlnwD0wLQOq6LBHN5Y8=" />

<title>

政策文件_中國電力工程造價信息網</title>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<meta http-equiv="Content-Language" content="gb2312" />

<meta name="KeyWords" content="電力工程造價,價格信息,裝材,設備,電力工程" />

<meta name="description" content="電力工程造價信息" />

<style type="text/css">

*{

margin:0;padding:0;

}

</style>

</head>

<body>

<div class="cecmbody" id="cecmpolicy">

<div class="leftClass">

<p>測試</p>

<input type="button" value="點擊這裏" onclick="sAlert('測試效果');" />

</div>

<div class="rightClass">

</div>

</div>

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

function sAlert(str){

var msgw,msgh,bordercolor;

msgw=400;//提示窗口的寬度

msgh=100;//提示窗口的高度

titleheight=25 //提示窗口標題高度

bordercolor="#336699";//提示窗口的邊框顏色

titlecolor="#99CCFF";//提示窗口的標題顏色

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="關閉";

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>

不知道 妳要的是不是這種類似的效果!

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