sending data to a modal form in jsp page using bootstrap

I have a problem sending and receiving data from a button to a modal form in bootstrap.

Inside my button tag I have: data-comment=<%=Comentarios.listUltimos().get(i).getComentario() %> and then I take that data with a javascript code in the event on click, where I fill the form.

var myComentario = $(this).data('comment'); document.getElementById("myModalComment").value=myComentario;

It works fine but It only takes the first word of the content I have in my DataBase. Any advice?? Thanks in advance and sorry about my english.