function unhideEml(anchor, a, b){
	anchor.href = 'mailto:' + zipper(a,b);
	anchor.innerHTML = zipper(a,b);
}

function zipper(a,b){
	// a.length is expected to extend (or equal) b.length
    	zipped = '';
    	for (i = 0; i < a.length; i++) {
      		zipped += a.charAt(i);
      		if (b.length > i) {
        		zipped += b.charAt(i);
      		}
    	}
    	return(zipped);
}