Help fixing a script to show multiple fields upon drop down selection

[Theo5E95]

I have 9 icon fields which are all hidden. I have three drop-down menus, each with three selections (Worth mentioning, each is set to Commit value immediately).

The code I have written is based on examples I have found in other threads regarding similar issues.

My code, which produces nothing, only connects itself to three fields and is as follows:

if (event.value == "12 O'Clock")
{
this.getField("MCO - L").display = display.visible;
this.getField("MCO - L10").display = display.hidden;
this.getField("MCO - L2").display = display.hidden;
}
else if (event.value == "10 O'Clock")
{
this.getField("MCO - L").display = display.hidden;
this.getField("MCO - L2").display = display.hidden;
this.getField("MCO - L10").display = display.visible;
}
else if (event.value == "2 O'Clock")
{
this.getField("MCO - L").display = display.hidden;
this.getField("MCO - L10").display = display.hidden;
this.getField("MCO - L2").display = display.visible;
}

What I want to achieve is a code that shows two fields and keeps the rest hidden. For example purposes, refer to them as Icon1 & Text1.

[Nesa Nurani]

Script looks ok. What is the issue exactly?

[Theo5E95]

Apologies Nesa, it would seem the largest fault was that a suffix had been added to each icon [af_image].

My formula is correct, hussah! I need to have a text field become visible dependant on the selection made. How might I achieve this?

[Nesa Nurani]

Script should already do that.

What is the name of the field you wish to show/hide, and what are the choices in the dropdown?

[Theo5E95]

A text field not within the drop-down menu. Text field Distance to LMC - L10 to be shown when MCO - L10 is visible. 

[Nesa Nurani]

If "MCO - L10" field is visible, "LMC - L10" field should also be visible, else it should be hidden?

You can use this as calculate script of "LMC - L10" field:

event.target.display = this.getField("MCO - L10").display == display.visible ? display.visible : display.hidden;

[try67 · Accepted solution]

You don't need the condition. This is sufficient:

event.target.display = this.getField("MCO - L10").display;