function screenSize() {
var w, h;
w = (window.innerWidth ? window.innerWidth : (document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.offsetWidth));
h = (window.innerHeight ? window.innerHeight : (document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.offsetHeight));
return {w:w, h:h};
}
if (screenSize().w>1366) $v=8;
else if (screenSize().w>1024) $v=7;
else $v=5;