js ie下有效 showModalDialog 、showModelessDialog

        <input type="button" value="打开选择输入框"/>
        <script type="text/javascript">

      //IE有效 chrome无效       模式 与非模式 
         //window.showModalDialog("asdfasdf");
         //window.showModelessDialog("asdfasdf");
            //定位按钮，同时添加事件
            document.getElementsByTagName("input")[0].onclick=function(){
                //以模式和非模式方式打开窗口
                var url = "childNodes.html";
                var sFeatures = "dialogHeight:400px;dialogWidth:200px;dialogLeft:20%";
                
                
                
                window.showModalDialog(url,null,sFeatures);//模式（用途较多)
                //window.showModelessDialog(url);//非模式
            }
        </script>