XF 1.5 how create a link to active the redactor box?

[rafass]

A link that you click and bring you directly to the redactor box. (active the box and put the cursor there)
exactly as when you quote someone. (but without quote anything)

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[rafass]

I've been trying with something like:

<a href="#" data-posturl="?" data-tip="?" class="ReplyQuote item control reply"><span>{xen:phrase my_phrase}</span></a>

and it works, but the problem is that it active the ajax gif (and never stop)

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And generate this small error:


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Edit:
completely empty works perfect:

<a href="" data-posturl="" data-tip="" class="callToAction ReplyQuote item control reply"><span>{xen:phrase my_phrase}</span></a>