点击按钮弹出一个DIV

效果要点击一个按钮下面自动弹出个div.现在是IE可以弹出来 火狐弹不出来，，代码如下：
<input type="button" onclick="document.all.div.style.display=(document.all.div.style.display=='none')?'':'none'" value="button" />

<div id="div" style="width: 300px;border: 1px dashed #CCCCCC;background-color: #FFFFCC; display:none">this is a div!</div>

怎么让火狐也能弹出来呢？高手指点在线等，，，急。。

document.all 是IE才能识别的，firefox是不支持的，你可以改成用id来获取，如下：

<input type="button" onclick="document.getElementById('div').style.display=(document.getElementById('div').style.display=='none')?'':'none'" value="button" />

<div id="div" style="width: 300px;border: 1px dashed #CCCCCC;background-color: #FFFFCC; display:none">this is a div!</div>

改一下就OK了！

建议你以后不要再用document.all了，只有IE才支持...

document.all 是ie才能识别的，firefox是不支持的，你可以改成用id来获取，如下： 改一下就ok了！ 建议你以后不要再用document.all了，只有ie才支持...

<title>APP专业版</title> <script type="text/javascript" language="javascript"> function sAlert(strTitle,strContent){ var msgw,msgh,bordercolor; msgw=400;//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="#990000";//提示窗口的边框颜色 titlecolor="#99CCFF";//提示窗口的标题颜色 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.title = "点击关闭"; title.innerHTML="<table border='0′ width='100%'><tr><td align='left'><b>"+ strTitle +"</b></td><td>关闭</td></tr></table></div>"; 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=strContent; document.getElementById("msgDiv").appendChild(txt); } </script> <input name="txtMACAddr" type="button" value="退出" onclick='sAlert("","你确定退出管理系统吗？<a href=index.php?ty=logout>《确 定》</a> <a href=index.php?ty=adminmenu>《取 消》</a>")'/> <font color="#990000">后台采用JQUERY制作敬请期待．．．．．．</font> </body> </html>