表单现阶段行高亮的实现

表单当前行高亮的实现
<!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>
    <link rel="stylesheet" type="text/css" href="style.css" />
    <script type="text/javascript" src="jquery.js"></script>
    <script type="text/javascript">
      $(document).ready(function(){
        $("input").focus(function() {
          $(this)
          .parent()
          .addClass("curFocus")
          .children("div")
          .toggle();
        });
        $("input").blur(function() {
          $(this)
          .parent()
          .removeClass("curFocus")
          .children("div")
          .toggle();
        });	
        $('<div class="tl"></div><div class="tr"></div><div class="bl"></div><div class="br"></div>').appendTo("div.single-field");
      });
    </script>
  </head>
  <body>
    <div id="page-wrap">
      <form>
        <div class="single-field">
          <label for="Name">Name:</label>
          <input name="Name" type="text"></input>
        </div>
        <div class="single-field">
          <label for="Email">Email:</label>
          <input name="Email" type="text"></input>
        </div>
        <div class="tl-line"></div>
        <div class="tr-line"></div>
        <div class="bl-line"></div>
        <div class="br-line"></div>
      </form>
    </div>
  </body>
</html>

 

具体示例参考附件。