function searchNodeValue( node, value ){
	if( value == node.nodeValue ){
		return node;
	}
	else{
		for( var i = 0; node.childNodes.length > i; i++ ){
			ret = searchNodeValue(node.childNodes[i], value);
			if( false != ret ){
				return ret;
			}
		}
		return false;
	}
}


window.onload = function (){

	var node = document.getElementById("naMonthlyArchive");

	var archive = searchNodeValue( node, "2007年01月" );
	archive.parentNode.parentNode.style.display = "none";

}