iteration sort to ignore capitalization

System

Anyone know how to sort ignoring the capitalization of words? What I'm trying isn't working... it alphabetically sorts the capitalized words, then sorts the lowercase words at the end. (ex. returns 'About, Alphabet, aggravate' instead of 'About, aggravate, Alphabet') Thanks in advance for your help!

<br>sub compare_document { <br>lc(iwpt_dcr_value('a.document')) cmp lc(iwpt_dcr_value('b.document'));<br>}<br>