How to activate OnGui with 3D Text

(CODE BELOW ^_^) So I have a 3D Text that I am clicking on with a collider that acts as a trigger. I have a boolean declared as "options" to be set to true when I click the 3D Text. I have in my OnGui function options that when true should make buttons appear on screen... However, the issue is that my buttons don't seem to show up.... So yeah! Code is below if anyone can help me!

~WM

 var options = false;
 
 function OnMouseUp(){
 
     options = true;
 
 }
 
 
 function OnGui(){
     
     
     if(options){
     
         GUI.Box (Rect (10,10,100,90), "Loader Menu");
         
         if(GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2, 100, 30), "General")){
         
             options = false;
             game = true;
             
         }
         if(GUI.Button(Rect(Screen.width/2 - 25, Screen.height/2, 100, 30), "Input")){
         
             options = false;
             input = true;
             
         }
         if(GUI.Button(Rect(Screen.width/2, Screen.height/2, 100, 30), "Graphics")){
         
             options = false;
             graphics = true;
             
         }
         if(GUI.Button(Rect(Screen.width/2 + 25, Screen.height/2, 100, 30), "Audio")){
         
             options = false;
             gameAudio = true;
             
         }
         if(GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2 + 90, 100, 30), "Input")){
         
             menu = true;
             
         }
     
     }
 
 }