function openWindow (nameurl, namewindow, width, height){ x = (640 - width)/2, y = (480 - height)/2; scrollb = 'no'; res = 'no'; if (screen) { y = (screen.availHeight - height)/2; x = (screen.availWidth - width)/2; } if ((namewindow == 'screen') || (namewindow == 'score')) { scrollb = 'yes'; res = 'yes'; } var prevwin = window.open(nameurl,namewindow,'width='+width+',height='+height+',screenX='+x+',screenY='+y+',top='+y+',left='+x+',scrollbars='+scrollb+',resizable='+res); prevwin.focus(); }