It's the same damn thing. The "j" in spanish makes the sound of an "h" in english. "Jajajajaja" is how you would spell the sound "hahahahaha" in spanish.
I got that shit in a text hella early this morning.......
Damn I hate them chain texts especially the ones that say "Jesus will not love u if u don't send to 10 people" I'm always like " fuck that!"