Fix IE's missing negated attribute operator in the selector class.
Fix IE's missing negated attribute operator in the selector class.

lamsieuquay/prototype,ShefronYudy/prototype,Jiasm/prototype,Jiasm/prototype,sdumitriu/prototype,baiyanghese/prototype,baiyanghese/prototype,fashionsun/prototype,ridixcr/prototype,sstephenson/prototype,292388900/prototype,fashionsun/prototype,savetheclocktower/prototype,Gargaj/prototype,sstephenson/prototype,ridixcr/prototype,loduis/prototype,sdumitriu/prototype,ShefronYudy/prototype,fashionsun/prototype,sstephenson/prototype,ldf7801528/prototype,Jiasm/prototype,erpframework/prototype,ShefronYudy/prototype,leafo/prototype,kangax/prototype,erpframework/prototype,sdumitriu/prototype,lamsieuquay/prototype,ridixcr/prototype,292388900/prototype,leafo/prototype,ldf7801528/prototype,savetheclocktower/prototype,erpframework/prototype,kangax/prototype,loduis/prototype,loduis/prototype,Gargaj/prototype,ldf7801528/prototype,292388900/prototype,Gargaj/prototype,lamsieuquay/prototype