add :focus check for IE7-9
add :focus check for IE7-9

fashionsun/webshim,tomascassidy/webshim,ilovezy/webshim,pablogrela/webshim,aFarkas/webshim,webdev1001/webshim,cl4rke/webshim,fashionsun/webshim,tomascassidy/webshim,cl4rke/webshim,aFarkas/webshim,pablogrela/webshim,fashionsun/webshim,ilovezy/webshim,ilovezy/webshim,webdev1001/webshim,tomascassidy/webshim,webdev1001/webshim,aFarkas/webshim,cl4rke/webshim,pablogrela/webshim