var ua = navigator.userAgent;       // ユーザーエージェント
var bStd = (document.compatMode && document.compatMode=="CSS1Compat");// 標準モードかどうか

function H_openwin(num,w,h,sc,rs) {
	switch (arguments.length) { 
		case 1: w = 240;
		case 2: h = 320;
		case 3: sc = 'no';
		case 4: rs = 'no';
	}
	H_win=window.open(num,"sub_win","toolbar=no,width="+w+",height="+h+",status=no,menubar=no,scrollbars="+sc+",resizable="+rs);
	H_win.focus();
}