Index: /temp/trunk/html/test/uehara/js/tree.js
===================================================================
--- /temp/trunk/html/test/uehara/js/tree.js	(revision 9523)
+++ /temp/trunk/html/test/uehara/js/tree.js	(revision 9538)
@@ -181,4 +181,4 @@
 // ÇØ·Ê¿§¤òÊѤ¨¤ë
 function fnChangeBgColor(id, val) {
-	document.getElementById(id).style = val;
+	document.getElementById(id).style.backgroundColor = val;
 }