// window.onloadイベントに追加
addWinLoadEvent( openMailMagazineWindow );

var mailMagWin;
function openMailMagazineWindow () {
	if ( !document.getElementsByTagName ) return false;
	if ( !document.getElementsByTagName( 'ul' ) ) return false;

	var lists = document.getElementsByTagName( 'ul' );
	for ( var i=0; i<lists.length; i++ ) {
		if ( 'backnumber' == getClassAttr( lists[i] ) ) {
			if ( lists[i].getElementsByTagName( 'a' ) ) {
				var links = lists[i].getElementsByTagName( 'a' );
				for ( var j=0; j<links.length; j++ ) {
					links[j].onclick = function () {
						var href = this.getAttribute( 'href' );
						mailMagWin = window.open( href, 'mailmag' );
						mailMagWin.focus();
						return false;
					}
				}
			}
		}
	}
	return true;
}