function feedback() {

var winl = (screen.width-455)/2;
var wint = (screen.height-480)/2;

window.open('http://arctic-berry.com/feedback.phtml','_blank','toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=1, resizable=1, copyhistory=no, width=455, height=480, top='+wint+', left='+winl+'');
}