javascript 输入框提示列表效果

代码可以更简洁些，有更简便的方法欢迎贡献出来啊。

<!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"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>输入框提示列表效果_脚本之家</title> <style type="text/css">  </style> <script type="text/javascript">   function showAndHide(obj,types){     var Layer=window.document.getElementById(obj);     switch(types){       case "show":         Layer.style.display="block";       break;       case "hide":         Layer.style.display="none";     }   }   function getValue(obj,str){     var input=window.document.getElementById(obj);     input.value=str;   } </script> </head> <body> <div class="form">  <div> Location：<input type="text" id="txt" name="txt" onClick="showAndHide('List1','show');" onblur="showAndHide('List1','hide');"></div>        <div class="Menu" id="List1">       <div class="Menu2">         <ul>           <li onmousedown="getValue('txt','中国CHINA');showAndHide('List1','hide');">中国CHINA</li>           <li onmousedown="getValue('txt','美国USA');showAndHide('List1','hide');">美国USA</li>         </ul>       </div>    </div> <div> Sex：<input type="text" id="txt2" name="txt2" onClick="showAndHide('List2','show');" onblur="showAndHide('List2','hide');"></div>         <div class="Menu" id="List2">       <div class="Menu2">         <ul>           <li onmousedown="getValue('txt2','男Male');showAndHide('List2','hide');">男Male</li>           <li onmousedown="getValue('txt2','女Female');showAndHide('List2','hide');">女Female</li>         </ul>       </div>    </div> <div> education：<input type="text" id="txt3" name="txt3" onClick="showAndHide('List3','show');" onblur="showAndHide('List3','hide');"></div>         <div class="Menu" id="List3">       <div class="Menu2">         <ul>           <li onmousedown="getValue('txt3','大专');showAndHide('List3','hide');">大专</li>           <li onmousedown="getValue('txt3','本科');showAndHide('List3','hide');">本科</li>           <li onmousedown="getValue('txt3','硕士');showAndHide('List3','hide');">硕士</li>           <li onmousedown="getValue('txt3','本科');showAndHide('List3','hide');">本科</li>         </ul>       </div>    </div> </div> </body> </html>

[Ctrl+A 全选注:引入外部Js需再刷新一下页面才能执行]

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javascript 输入框提示列表效果

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