
<!--PRELOAD IMAGES
bt_presentation = new Image();
bt_presentation.src = "img/bt_presentation.gif";   
bt_presentation_over = new Image();
bt_presentation_over.src = "img/bt_presentation_over.gif"; 

bt_impulsion = new Image();
bt_impulsion.src = "img/bt_impulsion.gif"; 
bt_impulsion_over = new Image();
bt_impulsion_over.src = "img/bt_impulsion_over.gif";

bt_savoirfaire = new Image();
bt_savoirfaire.src = "img/bt_savoirfaire.gif"; 
bt_savoirfaire_over = new Image();
bt_savoirfaire_over.src = "img/bt_savoirfaire_over.gif";

bt_references = new Image();
bt_references.src = "img/bt_references.gif"; 
bt_references_over = new Image();
bt_references_over.src = "img/bt_references_over.gif";

bt_contact = new Image();
bt_contact.src = "img/bt_contact.gif"; 
bt_contact_over = new Image();
bt_contact_over.src = "img/bt_contact_over.gif";

bt_accueil = new Image();
bt_accueil.src = "img/bt_accueil.gif"; 
bt_accueil_sel = new Image();
bt_accueil_sel.src = "img/bt_accueil_sel.gif";

bt_plansite = new Image();
bt_plansite.src = "img/bt_plansite.gif";   
bt_plansite_sel = new Image();
bt_plansite_sel.src = "img/bt_plansite_sel.gif"; 

bt_retour = new Image();
bt_retour.src = "img/bt_retour.gif";   
bt_retour_sel = new Image();
bt_retour_sel.src = "img/bt_retour_sel.gif"; 
-->