 * Fixed smartsearch down arrow problem in IE.  * Further comments on code/code cleanup.
 * Fixed smartsearch down arrow problem in IE.
 * Further comments on code/code cleanup.

git-svn-id: a567618c89aebaa161c3a71035153d9c5e7732cc@493 66a7d52b-23fa-0310-b706-d52274950f5d

weex/phpBMS,weex/phpBMS