/*E-Mail************************/
var name = "daten";
/*******************************/

/*Domain ************************/
var domain = "1zu1.eu";
/*******************************/
var protocol = 'mailto:';
var atdomain = '@' + domain;
document.write('<a href=\"' + protocol + name + atdomain + '\" class="link-mager">');
document.write( name + atdomain + '</a>');