[FIX] web: impossible to click on attach button, for many2many_binary

This fix is related to revision 4169 revid:mat@openerp.com-20140407120612-mjb08yts2oa4k4jz
[FIX] web: impossible to click on attach button, for many2many_binary

This fix is related to revision 4169 revid:mat@openerp.com-20140407120612-mjb08yts2oa4k4jz