In Dreamweaver, I have many cases of:

<td headers="t1_headername"

But "t1" is different on each line because there are many tables. It could be "t1", "t2"... all the way up to "t26".

I want to replace the above code with this, but leave all the t* in its original form.

<td class="highlight" headers="t1_headername"

Can this be done using regular expressions?