function jp_addproduct() {

var btn = document.getElementById("jp_fenetre_addproduct"); 
btn.className= "addproduct2"; 
}



//PLF-http://www.jejavascript.net/
function fenetreCent(url,nom,largeur,hauteur,options) {
var haut=(screen.height-hauteur)/2;
var Gauche=(screen.width-largeur)/2;
window.open(url,nom,"top="+haut+",left="+Gauche+",width="+largeur+",height="+hauteur+","+options);
}