function full_screen_banner(va1) {
	var url="http://cyberct.net/script/js/move.asp?target=banner&map=" + va1;
	var screen_w=window.screen.availWidth - 10;
	var screen_h=window.screen.availHeight - 30;
	var map_str="width=" + screen_w + ", height=" + screen_h + ", top=0, left=0, toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, titlebar=no";
	cyberctmap=window.open(url,"ctmap",map_str);
	if (cyberctmap.opener != self) {
		cyberctmap.close();
		cyberctmap=window.open(url,"ctmap",map_str);
	}
}