/* the following set up rules for behaviour.js */
	var site_rules = {
		/* apply field highlighters */
		'input' : function(element) {
			element.onfocus = function() {
				element.className += ' highlight';
			},
			element.onblur = function() {
				element.className = element.className.replace(/highlight/, '');
			}						
		},
		'textarea' : function(element) {
			element.onfocus = function() {
				element.className += ' highlight';
			},
			element.onblur = function() {
				element.className = element.className.replace(/highlight/, '');
			}						
		}		
	}