js link quota problem in php

echo '<a href="JavaScript:window.open('index.php?do=logout', 'newWindow')">click here</a>';

when i use single quota it gives error . how can i do it ?

<?php
// php code
?>
<a href="javascript:window.open('index.php?do=logout', 'newWindow')">click here</a>
Or escape the quotes with a backslash.

<?php
// php code
?>
<a href="javascript:window.open('index.php?do=logout', 'newWindow')">click here</a>
Or escape the quotes with a backslash.

i did it like

echo '<a href="JavaScript:window.open(\'index.php?do=logout\' ,\'newWindow\')">click here</a>';

but a windows is up agian (its content is [object Window])

i want only it goes link i gave and no any window. ?

Try: <a href="javascript:window.location('index.php?do=logout')">click here</a>
If that doesn't work make a post in the Javascript forum.

Try: <a href="javascript:window.location('index.php?do=logout')">click here</a>
If that doesn't work make a post in the Javascript forum.

it does not run