change material on: @script ExecuteInEditMode()

[josemauriciob]

Hi…
i am using the code below to change matrials to the same mesh fbx
by cheking boxes… ( picture below the code )

and here is my question :
how can I do … when user select the checkbox number 3, uncheck the nomber 1 and 2
without testing the game yet, ( on real time on inspector )

and viceversa
( when check another … the rest no selected make uncheck )
please help … thanks alot.

@script ExecuteInEditMode()

var texture1choose=false;
var texture2choose=false;
var texture3choose=false;

var materials : Material[ ];

function Update () {
var index1 = 1;
index = index1 % materials.Length;
renderer.sharedMaterial = materials[index1];

if(texture1choose==true)
{
var indexa = 1;
index1 = indexa;
index1 = index1 % materials.Length;
renderer.sharedMaterial = materials[index1];
}

if(texture2choose==true)
{
var indexb = 2;
index1 = indexb;
index1 = index1 % materials.Length;
renderer.sharedMaterial = materials[index1];
}

if(texture3choose==true)
{
var texture1choose=false;
var indexc = 3;
index1 = indexc;
index1 = index1 % materials.Length;
renderer.sharedMaterial = materials[index1];

}
}

[josemauriciob]

any help please _ ?
i need to uncheck when check another, on inspector… could be ?