clearFormField = function(elementId) {
	
	var field   = document.getElementById(elementId);
	field.value = '';
};

writeMail = function(a, d) {
	
    document.write ('<a href="mailto:' + a + '@' + d + '">' + a + '@' + d + '</a>');
};

writeMailEx = function(a, d, text){
    document.write ('<a href="mailto:' + a + '@'+ d + '">' + text + '</a>');
};