Refresh cfselect

Good morning,

I've been searching for days for an answer to my problem: When new items are added to a cfselect, how do I refresh a cfselect without refreshing the whole page?

myform1.cfm, has two, related select boxes:

<cfselect name="collectedgenus"
                bind="cfc:genus_species.getGenus()"
                bindonload="true"
                display="genus"
/>
               
          <cfselect name="species"
                bind="cfc:genus_species.getSpecies({collectedgenus})"
                value="rid"
                size="3"
               
                />

"collectedgenus" shows only the genus ie. Crassostrea, Pfiesteria, etc.  When a genus is selected from "collectedgenus" then "species" is populated with the related genus/species information.  For example, if Crassostrea is selected from "collectedgenus", "species" will show Crassoastrea virginia, Crassoastrea arikensis, etc.

If the desired "species" isn't found, the user can add a new record.  The user clicks a button that opens a pop-up form (mypopup1.cfm).  This form contains a drop down box for "genus" and a text box for the entry of the species name.  So, the user needs to select a genus from the "genus" box, then type in the new species name.  If the desired genus doesn't appear in the "genus" box, the user can click a button (on mypopup1.cfm) that opens a pop-up form (mypopup_genus.cfm), that allows a new genus to be entered.

The problem is that "collectedgenus" on myform1.cfm won't show the new genus unless I refresh myform1.cfm.  Otherwise, everything works beautifully.

Guidance on solving this problem will be very, very, very much appreciated!!!!