// JavaScript Document
var iMyWidth;
var iMyHeight;
iMyWidth = (window.screen.availWidth/2) - (800/2);
iMyHeight = (window.screen.availHeight/2) - (400/2);
function book(url) {
	popup = window.open(url,'Book','scrollbars=no,resizable=no,width=800,height=400,left=' + iMyWidth + ',top=' + iMyHeight + ''); popup.focus(); return false;
}