/*
1.戻るボタン
2.ポップアップ
*/

//1.戻るボタン
function go_back() {
	window.history.back();
} 

//2.ポップアップ

function popupwin(theURL) {
	var wnd;
	wnd = window.open(theURL,'popup','menubar=yes,location=yes,scrollbars=yes,resizable=yes,width=810,height=750');
	wnd.focus();
}

function popupblank(theURL) {
	var blank;
	blank = window.open(theURL,'_blank');
	blank.focus();
}