jQuery+html5实现div弹出层并遮罩背景

渐入弹窗，背景变色不可点击。查看效果：http://runjs.cn/detail/t08gmoij

<！doctype html><html><head><meta charset="utf-8"><title>popup</title><script type="text/javascript" src="jquery-2.1.3.min.js"></script></head><style type="text/css">#popup{position: absolute;display:none; z-index:3000; background-color:#FFF; left: 601px; top: 217px; height: 150px; width: 217px;line-height:94px;text-align:center;border: 1px solid #03F;}#embedding{position: absolute; background-color: #36F; top: 94px;height:56px; width:217px;line-height:56px;text-align:center;}a{text-decoration:none;font-family:"微软雅黑";font-size:18px;color:#FFF;}</style><script type="text/javascript">$（function（）{var url = null;$（document）.on（"click","button",function（）{var text = $（this）.text（）;switch（text）{case "OSChina":url = "http://www.oschina.net/";break;case "baidu":url = "http://www.baidu.com/";break;case "CSDN":url = "http://bbs.csdn.net/home";break;}$（"#text"）.text（"是否确定前往 "+text+" ?"）;$（"#loadingDiv"）.css（"display","block"）;$（"#popup"）.slideDown（）;}）; $（document）.on（"click","a",function（）{if（$（this）.text（）=="确定"）{location.href=url;}else{$（"#loadingDiv"）.css（"display","none"）; $（"#popup"）.slideUp（）;}}）;}）;</script><body><div id="loadingDiv" style="position:fixed;display:none;z-index:2000;top:0px;left:0px;width:100%;height:100%;background-color:rgba（255,255,0,0.5）"></div><div id="popup"><span id="text"></span><div id="embedding"><a href="javascript:void（0）">确定</a>   <a href="javascript:void（0）">取消</a></div></div><button style="position: absolute; left: 233px; top: 260px;" >OSChina</button><button style="position: absolute; left: 233px; top: 320px;" >baidu</button><button style="position: absolute; left: 233px; top: 380px;" >CSDN</button></body></html>

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