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Javascript Show Hide-将切换动作从复选框更改为<a href>链接</a>

[英]Javascript Show Hide - Changing toggle action from Checkbox to <a href> links

currently I have a method of showing / hiding a div based on a form checkbox field as per below. 目前,我有一种显示/隐藏基于下面的表单复选框字段的div的方法。 What I do want however is to not use a form to show hide rather just call the show / hide function based on a simple on a link . 但是我想要的是不使用表单来显示隐藏,而只是基于简单的链接调用show / hide函数。 I hope this makes sense what I am attempting to do. 我希望这是合理的,我正在尝试做。 Any help /advice would be really valued! 任何帮助/建议都将非常有价值!

<!-- Show hide-->
<script language="JavaScript">
function showhidefield()
{
if (document.goform.areas.checked)
{
document.getElementById("areaone").style.display = "block";
document.getElementById("areatwo").style.display = "none";
}
else
{
document.getElementById("areaone").style.display = "none";
document.getElementById("areatwo").style.display = "block";

}
}
</script>

<form name="goform" id="goform" action="xxxx" method="post" enctype="multipart/form-data">

<label><input name="areas" type="checkbox" onclick="showhidefield()" value="1"> Yes </label>

</form>

<div id="areaone" style="display:none;">
Area One
</div><!-- / Hideable area -->


<div id="areatwo" style="display:block;">
Area two
</div>

Changing the above so that rather than using a form checkbox to showhide, have a toggle effect based on event eg 更改上面的内容,以便不使用表单复选框进行显示,而是根据事件产生切换效果,例如

<a href="xxx">Show Areaone / Hide Areatwo</a>

<a href="xxx">Show Areatwo / Hide Areaone</a>

General Approach 一般的做法

The general approach is to use the onclick property of link tags. 通用方法是使用链接标记的onclick属性。 You can set this directly on the tag like this: 您可以像这样直接在标签上设置:

<a onclick="showhidefield()" href="javascript:void(0);">Show/Hide</a>

Example 1 例子1

Here's a full working example: 这是一个完整的工作示例:

<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <div id="areaone" style="display:none;">
      Area one
    </div>
    <div id="areatwo" style="display:block;">
      Area two
    </div>
    <script type='text/javascript'>
      function showOneHideTwo(){
          document.getElementById("areaone").style.display = "block";
          document.getElementById("areatwo").style.display = "none";
      }

      function showTwoHideOne(){
          document.getElementById("areaone").style.display = "none";
          document.getElementById("areatwo").style.display = "block";
      }      
    </script>
    <a onclick="showOneHideTwo()" href="javascript:void(0);">Show one / Hide two</a>
    <a onclick="showTwoHideOne()" href="javascript:void(0);">Show two / Hide one</a>
  </body>
</html>

Example 2 (Better!) 示例2(更好!)

However, for a variety of reasons , it is preferable, if slightly less intuitive, to use javascript to set the onclick property instead of adding it to the html directly. 但是,由于种种原因 ,最好是使用javascript来设置onclick属性,而不是直接将其添加到html中,如果不太直观的话。 Here is a better full working example: 这是一个更好的完整工作示例:

<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <div id="areaone" style="display:none;">
      Area one
    </div>
    <div id="areatwo" style="display:block;">
      Area two
    </div>
    <a id='showOneLink' href=''>Show one / Hide two</a>
    <a id='showTwoLink' href=''>Show two / Hide one</a>
    <script type='text/javascript'> <!-- This allows for better placement of the script as well... -->
      //Same functions as before
      function showOneHideTwo(){
          document.getElementById("areaone").style.display = "block";
          document.getElementById("areatwo").style.display = "none";
      }

      function showTwoHideOne(){
          document.getElementById("areaone").style.display = "none";
          document.getElementById("areatwo").style.display = "block";
      }

      //this time, we set the onclick here
      //this is better form- it keeps the content (html) and the scripting (javascript) seperate
      document.getElementById("showOneLink").onclick = function(){showOneHideTwo(); return false;}
      document.getElementById("showTwoLink").onclick = function(){showTwoHideOne(); return false;}
    </script> 
  </body>
</html>

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