function swapGenreDisplay () {
	if (!document.getElementById) return;
	var bool = (document.getElementById ("genreBlock").style.display != "none");
	document.getElementById ("genreBlock").style.display = bool ? "none" : "block";
	changeImage ("genreButton", "/common/images/button_" + (bool ? "plus" : "minus") + "_01.gif");
	deleteRestoreImage ("genreButton");
	document.getElementById ("genreButton").alt = document.getElementById ("genreButton").title = bool ? "全部見る" : "閉じる";
}
if (document.getElementById) {
	addWindowListener ("load", swapGenreDisplay);
}

function search () {
    document.getElementById('keyword').value += " " +  document.getElementById('keyword2').value;
    document.getElementById('subform').submit();
}