Can I press harassment charges on someone for something that happened on facebook?

Asked by ItalianPrincess1217 (11979) January 19th, 2011 from iPhone

Unfortunately it’s my own grandmother. Long story but I’ll sum it up by saying she doesn’t agree with my decision to divorce so she went on a rampage. She posted many very hurtful and disrespectful things on my facebook wall and attacked my friends. I took pictures of the things she said just in case it didn’t stop. I woke up an hour ago to see even more. I deleted her from my friends so this shouldn’t be a problem anymore. But she calls me constantly and leaves me very rude voicemails all the time. She sends disrespectful emails to my regular email address also. I want her out of my life. I’m pregnant and I don’t need the stress of this right now. She will never support my decisions so I want nothing to do with her anymore. In case this harassment doesn’t stop soon, is there legally anything I can do? I don’t want my own grandmother in jail so I don’t need any drastic measures. I just want her to know I’m serious and want to be left alone.