帮帮改一下代码，小弟不会JS


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD><BODY>
<script> 
var time = 10; function sAlert(txt) 
{ //var eSrc=(document.all)?window.event.srcElement:arguments[1]; 
var shield = document.createElement("DIV"); 
shield.id = "shield"; 
shield.style.position = "absolute"; 
shield.style.left = "0px"; 
shield.style.top = "0px"; 
shield.style.width = "100%"; 
shield.style.height = document.body.scrollHeight+"px"; 
shield.style.background = "#333"; 
shield.style.textAlign = "center"; 
shield.style.zIndex = "10000"; 
shield.style.filter = "alpha(opacity=0)"; 
shield.style.opacity = 0; 
var alertFram = document.createElement("DIV"); 
alertFram.id="alertFram"; 
alertFram.style.position = "absolute"; 
alertFram.style.left = "50%"; 
alertFram.style.top = "50%"; 
alertFram.style.marginLeft = "-225px" ; 
alertFram.style.marginTop = -75+document.documentElement.scrollTop+"px"; 
alertFram.style.width = "450px"; 
alertFram.style.height = "150px"; 
alertFram.style.background = "#ccc"; 
alertFram.style.textAlign = "center"; 
alertFram.style.lineHeight = "150px"; 
alertFram.style.zIndex = "10001"; 
strHtml = " <ul style=\"list-style:none;margin:0px;padding:0px;width:100%\"> \n"; 
strHtml += "  <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\"> [提示]"+time+"秒钟后关闭"+" </li> \n"; 
strHtml += "  <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\"> "+txt+" </li> \n"; 
strHtml += "  <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"> <input type=\"button\" value=\" 确 定 \" id=\"do_OK\" onclick=\"doOk()\" /> </li> \n"; 
strHtml += " </ul> \n"; 
alertFram.innerHTML = strHtml; 
document.body.appendChild(alertFram); 
document.body.appendChild(shield); 
this.setOpacity = function(obj,opacity){ 
if(opacity>=1)opacity=opacity/100; 
try{ obj.style.opacity=opacity; }catch(e){} 
try{ 
if(obj.filters.length> 0&&obj.filters("alpha")){ 
obj.filters("alpha").opacity=opacity*150; 
}else{ 
obj.style.filter="alpha(opacity=\""+(opacity*150)+"\")"; 
} 
}catch(e){} 
} 
var c = 0; 
this.doAlpha = function(){ 
if (++c >  20){clearInterval(ad);return 0;} 
setOpacity(shield,c); 
} 
var ad = setInterval("doAlpha()",1); 
this.doOk = function(){ 
document.body.removeChild(alertFram); 
document.body.removeChild(shield); 
document.body.onselectstart = function(){return true;} 
document.body.oncontextmenu = function(){return true;} 
} 
document.getElementById("do_OK").focus(); 
document.body.onselectstart = function(){return false;} 
document.body.oncontextmenu = function(){return false;} setTimeout("hideDialog()", time * 1000); // 添加
}function hideDialog() { // 添加
document.getElementById("shield").style.display = "none";
document.getElementById("alertFram").style.display = "none";
}</script> 
<input type="button" value="点击这里" onclick="sAlert('test弹dfgdfgdfg效果')"/>   
</BODY>
</HTML>

解决方案 »

  1.   


    <script> 
    var time=10;
    function dec(){
    time--;
    document.getElementById("time_pad").innerHTML = time;
    if(time==0) document.getElementById("do_OK").fireEvent("onclick");
    }
    function sAlert(txt) 
    { 
    time=10; 
    window.setInterval("dec()",1000); 
    //var eSrc=(document.all)?window.event.srcElement:arguments[1]; 
    var shield = document.createElement("DIV"); 
    shield.id = "shield"; 
    shield.style.position = "absolute"; 
    shield.style.left = "0px"; 
    shield.style.top = "0px"; 
    shield.style.width = "100%"; 
    shield.style.height = document.body.scrollHeight+"px"; 
    shield.style.background = "#333"; 
    shield.style.textAlign = "center"; 
    shield.style.zIndex = "10000"; 
    shield.style.filter = "alpha(opacity=0)"; 
    shield.style.opacity = 0; 
    var alertFram = document.createElement("DIV"); 
    alertFram.id="alertFram"; 
    alertFram.style.position = "absolute"; 
    alertFram.style.left = "50%"; 
    alertFram.style.top = "50%"; 
    alertFram.style.marginLeft = "-225px" ; 
    alertFram.style.marginTop = -75+document.documentElement.scrollTop+"px"; 
    alertFram.style.width = "450px"; 
    alertFram.style.height = "150px"; 
    alertFram.style.background = "#ccc"; 
    alertFram.style.textAlign = "center"; 
    alertFram.style.lineHeight = "150px"; 
    alertFram.style.zIndex = "10001"; 
    strHtml = " <ul style=\"list-style:none;margin:0px;padding:0px;width:100%\"> \n"; 
    strHtml += "  <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\"> [提示]<span id='time_pad'>"+time+"</span>秒钟后关闭"+" </li> \n"; 
    strHtml += "  <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\"> "+txt+" </li> \n"; 
    strHtml += "  <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"> <input type=\"button\" value=\" 确 定 \" id=\"do_OK\" onclick=\"doOk()\" /> </li> \n"; 
    strHtml += " </ul> \n"; 
    alertFram.innerHTML = strHtml; 
    document.body.appendChild(alertFram); 
    document.body.appendChild(shield); 
    this.setOpacity = function(obj,opacity){ 
    if(opacity >= 1)opacity=opacity/100; 
    try{ obj.style.opacity=opacity; }catch(e){} 
    try{ 
    if(obj.filters.length> 0&&obj.filters("alpha")){ 
    obj.filters("alpha").opacity=opacity*150; 
    }else{ 
    obj.style.filter="alpha(opacity=\""+(opacity*150)+"\")"; 
    } 
    }catch(e){} 
    } 
    var c = 0; 
    this.doAlpha = function(){ 
    if (++c >  20){clearInterval(ad);return 0;} 
    setOpacity(shield,c); 
    } 
    var ad = setInterval("doAlpha()",1); 
    this.doOk = function(){ 
    document.body.removeChild(alertFram); 
    document.body.removeChild(shield); 
    document.body.onselectstart = function(){return true;} 
    document.body.oncontextmenu = function(){return true;} 
    } 
    document.getElementById("do_OK").focus(); 
    document.body.onselectstart = function(){return false;} 
    document.body.oncontextmenu = function(){return false;} 
    } </script> 
    <input type="button" value="点击这里" onclick="sAlert('test弹dfgdfgdfg效果');"  />