var pre = 'ma';
pre = pre + 'il' + 'to'; 
var path = 'hr' + 'ef' + '='; 
var veil = 'info';
veil = veil + '@'; 
veil = veil + 'amisso' + '.' + 'de';
document.write('E-Mail: ');
document.write( '<a ' + path + '\'' + pre + ':' + veil + '\'>' ); 
document.write( veil ); 
document.write( '<\/a>' );