How can I get the display value from oldValue in a client script?

[gjz1]

I have a requirement to store the old display value of a reference field in a string field.  I'm using an onChange client script, but I can't figure out how to get the display value from oldValue.  Does anyone know how I can accomplish this?  What I have written returns the sys_id, I need the display value.

TIA

[gjz1]

Thanks Stephen - I'll check into that.

[IceIronDragon]

GJZ,

try   oldValue.getDisplayValue()

[gjz1]

This is a client script, getDisplayValue() isn't available for client scripts.