How to give print link in a webpage

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<a href="#" rel="nofollow" onclick="window.print(); return false;" >
   <span class="printfriendly-text2 printandpdf">
   <img style="border:none;margin-right:6px;" src="http://cdn.printfriendly.com/pf-print-icon.gif" width="16" height="15" alt="">Print </span>
</a>