Disappearing text from dropbox with javascript for mouse exit action

[andrewm77208536]

I have a dropdown box with four different options that each turn the dropdown box into a different color if selected. When selecting the options, I have words appear for each option, so that the user knows what they are choosing. After they have made a selection, I want to the word they chose to disappear, so only the color is left within the dropdown box. The dropdown box is essentially a tool for color coding data. I think this can be easily done with JavaScript for a Mouse Exit Action, but I don't know the code. Any help is much appreciated!

[ls_rbls]

Use the Acrobat JavaScript Scripting Reference :

 https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/Acro6JS1.pdf

Look the at the keyword table and the example found in Pages 96 -97

The code would in the example looks like this: 

var f = event.target; /* field that the event occurs at */
f.target.textColor = event.value < 0 ? color.red : color.black;

[ls_rbls]

I forgot to add this reference from Thom Parker: https://acrobatusers.com/tutorials/using-colors-acrobat-javascript/

[Thom Parker]

Use a custom format script to set the display to blank.

event.value = "";