var edress = 'santos_at_santos_dot_nl';
function get_edress(){
var re= /_at_/gi;
edress = edress.replace(re,'@');
var re= /_dot_/gi;
edress = edress.replace(re,'.');
var the_link="mai" + "lto" +":"+edress+"?subject=Mail via website: Mijn vraag of opmerking is" ;
window.location=the_link;

}