function isOpener() {
	var ua = navigator.userAgent;
		if(!!window.opener) {
			if( ( ua.indexOf('Gecko')!=-1 || ua.indexOf('MSIE 4')!=-1 ) && ua.indexOf('Win')!=-1 ) {
				return !window.opener.closed;
			} else {
				if (ua.indexOf('Firefox')!=-1) {
					return true;
				} else {
					return typeof window.opener.document  == 'object';
				}
			}
		} else {
			return false;
		}
}

function toPage(url){
	if(isOpener()){
		window.opener.location.href=url;
		window.opener.focus();
	}else{
		newWin =window.open(url,"joshibi","scrollbars=1,resizable=1,location=1,directories=1,menubar=1,toolbar=1, status=1");
		newWin.focus();
	}
}

function winClose() {
	window.opener = window;
	window.close();
}