var pwW1 = 554;
var pwH1 = 414;
var pwL1 = (screen.width) ? Math.ceil((screen.width/2) - (pwW1/2)) : 0;
var pwT1 = (screen.height) ? Math.ceil((screen.height/2) - (pwH1/2)) : 0;
var _POPUP_FEATURES1 = 'left='+pwL1+',top='+pwT1+',scrollbars=0,location=0,statusbar=0,menubar=0,width='+pwW1+',height='+pwH1+'';

var pwW2 = 534;
var pwH2 = 510;
var pwL2 = (screen.width) ? Math.ceil((screen.width/2) - (pwW2/2)) : 0;
var pwT2 = (screen.height) ? Math.ceil((screen.height/2) - (pwH2/2)) : 0;
var _POPUP_FEATURES2 = 'left='+pwL2+',top='+pwT2+',scrollbars=0,location=0,statusbar=0,menubar=0,width='+pwW2+',height='+pwH2+'';