function write_e(el){
    var str =unescape('contact'+'%40');
    var elem = document.getElementById("el");
    var x = document.createElement('a');
    x.setAttribute("href","mailto:" + str + 'd-silk' + '.ru');
    var y = document.createTextNode(str + 'd-silk' + '.ru');
    x.appendChild(y);
    document.getElementById(el).appendChild(x);
}