PHP and MySQL output

[Lautarox]

I was coding a dynamic javascript script, and realised that when I was triying to load some questions from the database I got some unexpected characters:

var preguntas = new Array("¿Como me llamo?", "¿Donde vivo?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?", "¿En que barrio?");

Why is the  character beeing printed? I inserted the row using phpMyAdmin

Thanks in advance