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改善用户体验之alert提示效果

作者：jxdawei　　发布时间：2014-07-28 03:01:12　

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类似于新浪邮箱的提示效果。比较独立。在wenming版主的帮助下，已解决了高度不能适应的BUG。

使用方法很简单，在需要弹出提示的页面先

然后直接在需要提出处使用：

sAlert("需要提示的信息")

即可完成全部效果。不需要在页面中添加任何其它代码。

运行代码框
<!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_中国电力工程造价信息网</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><meta http-equiv="Content-Language" content="gb2312" /><meta name="KeyWords" content="电力工程造价,价格信息,装材,设备,电力工程" /><meta name="description" content="电力工程造价信息" /><style type="text/css"> *{ margin:0;padding:0; }</style></head><body><div class="cecmbody" id="cecmpolicy"><div class="leftClass"> <p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><p>测试</p><input type="button" value="点击这里" onclick="sAlert('测试效果');" /></div><div class="rightClass"></div></div><script type="text/javascript" language="javascript">//Author:Daviv//Blog:http://blog.163.com/jxdawei//Date:2006-10-27//Email:jxdawei@gmail.comfunction sAlert(str){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="#336699";//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.innerHTML="关闭"; 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>
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改善用户体验之alert提示效果

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