ECMS-5933: [IE8][Content Admin] Impossible to Add Symlink for a node

Fix description:
	- Replace href by onclick
ECMS-5934: [IE8][Content Admin] Impossible to edit/delete a comment for a node

Fix description:
	- Replace href by onclick
ECMS-5937: [IE8][Content Admin] Exception thrown and Impossible to restore a node after deleting

Fix description:
	- Replace href by onclick