Assigning two variables ?

Hi everyone,

I'm trying to make three GUI buttons. I want to hit one button and disables the other two and vice versa.

I'm using the variables "emble" and "bate" in order to enable and disable the buttons,

Now I have problems trying to get working my function "function tool(){" so I can enable or disables the other two.

thanks in advance for your help.

Please take a look to my function Tool

     function tool(){
     if(bate == true && emble == true){
     bate == false && emble == false;
     yield WaitForSeconds (2.5);
     bate == true && emble == true;
     }
     }
      

Please take a look to the script,

     var Skin_battery : GUISkin;
     var Skin_Disassemble : GUISkin;
     var beep : AudioClip;
 
     var bate  = true;
     var emble = true;
    
     
     private function GetABooleanValue(): boolean{
      
     if(bate == false && emble == false){
     return true;
     }else{ if(bate == false && emble == true){
     return false;
     }else{ 
     if(bate == true && emble == false){
     return false;
     }else{
     return true;
     }
     }
     } 
     } 
 
     //GUI BUTTONS///////////////////////////
 
     function OnGUI (){
 
  
     //TOOL//////////////////////////////////
      
     GUI.enabled = bate;
     GUI.skin = Skin_tool;
     if (GUI.Button(Rect(870,345,80,80),"")){
     disassemble();
     }
  
      
     //BATTERY///////////////////////////////
      
     GUI.enabled = emble;
     GUI.skin = Skin_battery;
     if (GUI.Button(Rect(870,470,80,39),"")){
     battery();
      
     }
      
     //DISASSEMBLE///////////////////////////
 
     GUI.enabled = GetABooleanValue();
     GUI.skin = Skin_Disassemble;
     if (GUI.Button(Rect(870,512,80,80),"")){
     tool();           
     }
     } 
  
      
     //FUNCTIONS//////////////////////////////////////
      
     function battery(){
     if(bate == true){
     bate = false;
     yield WaitForSeconds (2.5); 
     bate =true;     
     }
     }
    
 
     function disassemble(){
     if(emble == true){
     emble = false;
     yield WaitForSeconds (2.5);   
     emble = true;
     }
     }
  
 
     function tool(){
     if(bate == true && emble == true){
     bate == false && emble == false;
     yield WaitForSeconds (2.5);
     bate == true && emble == true;
     }
     }