function writeTitle(title, element, attr) {
  	if (!isBlank(title))
  		document.getElementById(element).innerHTML = '<strong><a href=# class="' + attr + '" >' + title + '</a></strong><br>';
}

function writeField(field, value) {
	if (!isBlank(value))
		document.getElementById(field).innerHTML = value;
}

function writeUrl(url) {
	if (!isBlank(url))
		document.getElementById('urlDiv').innerHTML = '<strong><a class="small">' + url + '</a></strong><br>';
}

function isBlank(s) {
if (s == null || s == '') return true;
for (var i = 0; i < s.length; i++) {
var c = s.charAt(i);
if ((c != ' ') && (c != '\n') && (c != '\r') && (c != '\t'))
	return false;
}
	return true;
}