Javascript apex.item

[admin]

$v( "P2_ENAME" )
apex.item( "P2_ENAME" ).getValue()

$s( "P2_ENAME", "Sikandar" )
apex.item( "P2_ENAME" ).setValue("Sikandar")

apex.item( "P2_ENAME" ).hide()
apex.item( "P2_ENAME" ).show()

apex.item( "P2_ENAME" ).enable()
apex.item( "P2_ENAME" ).disable()

-- List
apex.item( "P2_DEPTNO" ).getValue()
apex.item( "P2_DEPTNO" ).displayValueFor(20)

Source