function openCENTER() {
var w;
w = window.open('menu.html','chip',
'resizable=no,scrollbars=no,menubar=no,status=no,location=no,width=640,height=590');//
w.window.focus();
wx = 640;
wy = 590;
x = (screen.width - wx ) / 2;
y = (screen.height -wy ) / 2;
w.window.moveTo(x,y);
}