[javascript] jQuery : select all element with custom attribute

Possible Duplicate:
jQuery, Select by attribute value, adding new attribute
jQuery - How to select by attribute

please consider this code:

<p>11111111111111</p>
<p MyTag="nima">2222222222</p>
<p>33333333333</p>
<p MyTag="Sara">>4444444444</p>

how I can select All p tag with attribute MyTag?

thanks

As described by the link I've given in comment, this

$('p[MyTag]').each(function(index) {
  document.write(index + ': ' + $(this).text() + "<br>");});

works (playable example).