var headBehaviour = {
	'.linkButton': function(button) {
		button.onclick = function() {
			var url = button.getAttribute("linkURL");
			if (url.indexOf("mailto:") < 0 && url.indexOf("http:") < 0  && url.indexOf("https:") < 0) {
				url = pathPrefix + "/" + url;
			}
			self.location = url;
		}
	},
	
	'input': function(input) {
		if (Element.hasClassName(input, "required")) {
			if (Element.hasClassName(input, "full")) {
				input.style.width = "97%";
			}
			new Insertion.After(input, "&nbsp;<span class='fieldDecoration' style='vertical-align:top'>*</span>");
		}
		if (Element.hasClassName(input, 'pattern')) {
			var pattern = input.getAttribute("maskPattern");
			if (!isEmpty(pattern)) {
				new InputMask(pattern, input);
			}
		} else if (Element.hasClassName(input, 'number')) {
			new InputMask(JST_MASK_NUMBERS, input);
		} else if (Element.hasClassName(input, 'float')) {
			var mask = new NumberMask(numberParser, input, 9);
			mask.allowNegative = false;
		} else if (Element.hasClassName(input, 'floatHighPrecision')) {
			var mask = new NumberMask(highPrecisionParser, input, 9);
			mask.allowNegative = false;
			mask.leftToRight = true;
		} else if (Element.hasClassName(input, 'floatNegative')) {
			var mask = new NumberMask(numberParser, input);
			mask.keyUpFunction = function() {
				if (input.value == "") return;
				var number = mask.getAsNumber();
				if (number > 0) {
					input.value = "-" + input.value;
				}
			}
			mask.allowNegative = false;
		} else if (Element.hasClassName(input, 'date') || Element.hasClassName(input, 'dateNoLabel')) {
			new DateMask(dateParser, input);
			if (!Element.hasClassName(input, 'dateNoLabel')) {
				new Insertion.After(input, "&nbsp;(<span class='fieldDecoration'>" + datePattern + "</span>)");
			}
		} else if (Element.hasClassName(input, 'dateTime') || Element.hasClassName(input, 'dateTimeNoLabel')) {
			// Use a new parser to not enforce length
			var parser = new DateParser(dateTimeParser.mask, false);
			parser._isValid = parser.isValid;
			var mask = new DateMask(parser, input);
			mask.blurFunction = function() {
				// Ensure at least the date part will be required
				var len = this.value.length;
				if (len > 0 && len < dateParser.mask.length) {
					alert(mask.validationMessage);
					this.value = '';
					return false;
				}
				// Fill in the missing fields on blur
				var date = parser.parse(this.value);
				if (date != null) {
					this.value = parser.format(date);
				} else {
					this.value = '';
				}
			}
			if (!Element.hasClassName(input, 'dateTimeNoLabel')) {
				new Insertion.After(input, "&nbsp;(<span class='fieldDecoration'>" + dateTimePattern + "</span>)");
			}
		} else if (Element.hasClassName(input, 'upload')) {
			new Insertion.After(input, "&nbsp;(<span class='fieldDecoration'>" + uploadLimitText + " " + maxUploadSize + "</span>)");
		}
	},
	
	'textarea': function(textarea) {
		if (Element.hasClassName(textarea, "required")) {
			if (Element.hasClassName(textarea, "full")) {
				textarea.style.width = "97%";
			}
			new Insertion.After(textarea, "&nbsp;<span class='fieldDecoration' style='vertical-align:top'>*</span>");
		}
		if (Element.hasClassName(textarea, "maxLength")) {
			var maxLength = parseInt(textarea.getAttribute("maxLength"));
			if (!isNaN(maxLength) && maxLength > 0) {
				new SizeLimit(textarea, maxLength);
			}
		}
	},
	
	'select': function(select) {
		if (Element.hasClassName(select, "required")) {
			new Insertion.After(select, "&nbsp;<span class='fieldDecoration' style='vertical-align:top'>*</span>");
		}
	},
	
	'img': function(img) {
		if (Element.hasClassName(img, "help")) {
			img.title = helpTooltip;
			var page = img.getAttribute("helpPage");
			img.onclick = function() {
				showHelp(page, 330, 400, '', -20, 10);
			};
			img.onmouseover = function() {
				window.status = helpStatusPrefix + ": " + page;
			};
			img.onmouseout = function() {
				window.status = "";
			};
			setPointer(img);
		} else if (Element.hasClassName(img, "remove")) {
			img.title = removeTooltip;
		} else if (Element.hasClassName(img, "edit")) {
			img.title = editTooltip;
		} else if (Element.hasClassName(img, "view")) {
			img.title = viewTooltip;
		} else if (Element.hasClassName(img, "preview")) {
			img.title = previewTooltip;
		} else if (Element.hasClassName(img, "permissions")) {
			img.title = permissionsTooltip;
		} else if (Element.hasClassName(img, "print")) {
			img.title = printTooltip;
		} else if (Element.hasClassName(img, "exportCSV")) {
			img.title = exportCSVTooltip;
		}
	},
	
	'table.defaultTableContent': function(table) {
		var rows = table.rows;
		for (var i = 1; i < rows.length; i++) {
			var tr = rows[i];
			var tds = tr.getElementsByTagName("td");
			if (tds.length > 0) {
				Element.addClassName(tds[0], "innerBorder");
			}
		}

		var row = table.insertRow(table.rows.length);
		var tdLeft = row.insertCell(0);
		tdLeft.className = "bottomLeft";

		var tdRight = row.insertCell(1);
		tdRight.className = "bottomRight";
	},
	
	'label': function(label) {
		if (Element.hasClassName(label, "required")) {
			new Insertion.After(label, "&nbsp;<span class='fieldDecoration' style='vertical-align:top'>*</span>");
		}
	}
};
Behaviour.register(headBehaviour);