本文实例讲述了js实现仿网易点击弹出提示同时背景变暗效果。分享给大家供大家参考。具体如下:
这里仿网易点击弹出提示,背景变暗提示层效果,圆角,美观简洁,代码稍嫌多。
运行效果如下图所示:
在线演示地址如下:
http://demo.phpstudy.net/js/2015/js-sina-dialog-bgcolor-codes/
具体代码如下:
<html> <head> <title>点击弹出提示,背景变暗</title> <script> function msg(info){ var p=document.createElement(\"DIV\"); if (!info) var info=\'<a href=\"#\" target=\"_blank\" rel=\"external\">欢迎光临</a>\'; p.id=\"p\"; p.style.position=\"absolute\"; p.style.width=document.body.scrollWidth; p.style.height=(document.body.offsetHeight>document.body.scrollHeight)?\'100%\':document.body.scrollHeight; p.style.zIndex=\'998\'; p.style.top=\'0px\'; p.style.left=\'0%\'; p.style.backgroundColor=\"gray\"; p.style.opacity=\'0.5\'; p.style.filter=\"alpha(opacity=80)\"; document.body.appendChild(p); var p1=document.createElement(\"DIV\"); var top=parseInt(parseInt(document.body.scrollHeight)*0.25)+document.body.scrollTop; p1.style.position=\"absolute\"; p1.style.width=\"300px\"; p1.id=\"p1\"; var left=Math.ceil(((document.body.scrollWidth)-parseInt(p1.style.width.replace(\'px\',\'\')))/2)+document.body.scrollLeft; p1.style.height=\"200px\"; p1.style.zIndex=\'999\'; p1.style.top=top+\'px\'; p1.style.left=left+\'px\'; p1.style.border=\"0px solid red\"; var html=\"\"; html+=\"<center>\" html+=\"<div class=\'p3\' style=\'height:1px;overflow:hidden;background:red;width:294px;border-left:1px solid red;border-right:1px solid red;\'></div>\" html+=\"<div class=\'p2\' style=\'height:1px;overflow:hidden;background:red;width:296px;border-left:1px solid red;border-right:1px solid red;\'></div>\" html+=\"<div class=\'p2\' style=\'height:1px;overflow:hidden;background:red;width:298px;border-left:1px solid red;border-right:1px solid red;\'></div>\" html+=\"<div class=\'p1\' style=\'height:20px;overflow:hidden;background:red;width:300px;border-left:1px solid red;border-right:1px solid red;color:#fff;font-size:9pt;font-weight:bold;text-align:left;\'> ⊙ 友情提示:</div>\" html+=\"<div id=\'c\' style=\'height:150px;width:300px;background-color:#FEEACB;overflow:hidden;border-left:1px solid red;border-right:1px solid red;padding-top:40px;font-size:9pt;\'>\"+info+\"<br><br><br>[ <a href=\'javascript:this.cancle()\'> 关闭</a> ]</div>\" html+=\"<div class=\'p1\' style=\'height:1px;overflow:hidden;background:#FEEACB;width:298px;border-left:1px solid red;border-right:1px solid red;\'></div>\" html+=\"<div class=\'p2\' style=\'height:1px;overflow:hidden;background:#FEEACB;width:296px;border-left:1px solid red;border-right:1px solid red;\'></div>\" html+=\"<div class=\'p3\' style=\'height:1px;overflow:hidden;background:red;width:294px;border-left:1px solid red;border-right:1px solid red\'></div>\" html+=\"</center>\" document.body.appendChild(p1); p1.innerHTML=html; var arr=document.getElementsByTagName(\"select\"); var i=0; while(i<arr.length){ arr[i].style.visibility=\'hidden\'; i++; } this.cancle=function(){ document.body.removeChild(document.getElementById(\'p\')); document.body.removeChild(document.getElementById(\'p1\')); var arr=document.getElementsByTagName(\"select\"); var i=0; while(i<arr.length){ arr[i].style.visibility=\'visible\'; i++; } } } </script> </head> <body> <input value=\'点击弹出提示\' type=\'button\' onClick=\'msg()\' /> </body> </html>
希望本文所述对大家的javascript程序设计有所帮助。
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