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# Prototype readAttribute() Method

This method returns the value of element's attribute or null if attribute has not been specified.

## Syntax:

    element.readAttribute(attribute);

## Return Value:

- Returns the value of element's attribute or null if attribute has not been specified.

## Example:

    <html>
    <head>
    <title>Prototype examples</title>

    <script type="text/javascript"
       src="/javascript/prototype.js">
    </script>
    <script>

    function showResult(){
       var str = $('tag').readAttribute('href');
       alert("Value of href : " + str );

       var str = $('tag').readAttribute('title');
       alert("Value of title : " + str );

       var str = $('tag').readAttribute('somethingelse');
       alert("Value ofsomething else : " + str );

    }

    </script>
    </head>

    <body>

      <p>Click the button to see the result.</p>

      <a id="tag" href="/tags/prototype" rel="tag"
    		title="view related bookmarks.">Prototype</a>

      <br />
      <br />
      <input type="button" value="Show Result" onclick="showResult();"/>

    </body>
    </html>

To understand it in better way you can Try it yourself.

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