function addHelp(field, heading, content) {
	element = document.getElementById(field);
	if(element) {
		element.onfocus = function() {
			changeHelpDiv(heading, content);
			showHelpDiv();
		}
		element.onblur = function() {
			hideHelpDiv();
		}
	}
}

function changeHelpDiv(heading, content) {;
	headDiv = document.getElementById('helpHeading');
	if(headDiv) {
		headDiv.innerHTML = heading;
	} else {
		alert('Mistake');
	}
	contentDiv = document.getElementById('helpContent');
	if(contentDiv) {
		contentDiv.innerHTML = content;
	}
}

function showHelpDiv() {
	helpDiv = document.getElementById('helpDiv');
	helpDiv.style.display = 'block';
}

function hideHelpDiv() {
	helpDiv = document.getElementById('helpDiv');
	helpDiv.style.display = 'none';

}