function contact() {

var command = "mailto:";
var name = "command";
var number = "central";
var separator = "@";
var service = "mrrobotopresents";
var extension = ".com";

document.location = command+name+number+separator+service+extension;

}

function booking() {

var command = "mailto:";
var name = "book";
var number = "ing";
var separator = "@";
var service = "mrrobotopresents";
var extension = ".com";

document.location = command+name+number+separator+service+extension;

}