I'm searching for a way to link a text and a button in this way :
When the mouse goes over the button or the text I want the text to become orange et the button to get an orange border
This is when the mouse is not over the buttons nor the titles
And this is when the mouse is over the title or the button
either make the text part of the button (a movieclip button would be ideal because each button could use a dynamic textfield and have different text assigned with actionscript) or add mouse listeners to your buttons and text (converted to a movieclip).