var jdress = 'jonathan_at_emanagement-group_dot_com';
function get_jdress(){
var re= /_at_/gi;
jdress = jdress.replace(re,'@');
var re= /_dot_/gi;
jdress = jdress.replace(re,'.');
var the_link="mai" + "lto" +":"+jdress+"?subject=My question/remark is:" ;
window.location=the_link;

}