function popAMTC(URL) {
win_w = 780;
win_h = 550;
loc_x = (window.screen.width - win_w)/2;
loc_y = (window.screen.height - win_h)/2;
s = 0;
r = 0;
settings = 'height=' + win_h + ',width=' + win_w + ',top=' + loc_y + ',left=' + loc_x; // + ',scrollbars=' + s + ',resizable=' + r + ',toolbar=0,menubar=0,status=0';

amTC = window.open("images/" + URL,"MBAMTC",settings);
amTC.focus();

}