/*! http://mths.be/placeholder v2.0.8 by @mathias */
;(function(window, document, $) {

	// opera mini v7 doesn’t support placeholder although its dom seems to indicate so
	var isoperamini = object.prototype.tostring.call(window.operamini) == '[object operamini]';
	var isinputsupported = 'placeholder' in document.createelement('input') && !isoperamini;
	var istextareasupported = 'placeholder' in document.createelement('textarea') && !isoperamini;
	var prototype = $.fn;
	var valhooks = $.valhooks;
	var prophooks = $.prophooks;
	var hooks;
	var placeholder;

	if (isinputsupported && istextareasupported) {

		placeholder = prototype.placeholder = function() {
			return this;
		};

		placeholder.input = placeholder.textarea = true;

	} else {

		placeholder = prototype.placeholder = function() {
			var $this = this;
			$this
				.filter((isinputsupported ? 'textarea' : ':input') + '[placeholder]')
				.not('.placeholder')
				.bind({
					'focus.placeholder': clearplaceholder,
					'blur.placeholder': setplaceholder
				})
				.data('placeholder-enabled', true)
				.trigger('blur.placeholder');
			return $this;
		};

		placeholder.input = isinputsupported;
		placeholder.textarea = istextareasupported;

		hooks = {
			'get': function(element) {
				var $element = $(element);

				var $passwordinput = $element.data('placeholder-password');
				if ($passwordinput) {
					return $passwordinput[0].value;
				}

				return $element.data('placeholder-enabled') && $element.hasclass('placeholder') ? '' : element.value;
			},
			'set': function(element, value) {
				var $element = $(element);

				var $passwordinput = $element.data('placeholder-password');
				if ($passwordinput) {
					return $passwordinput[0].value = value;
				}

				if (!$element.data('placeholder-enabled')) {
					return element.value = value;
				}
				if (value == '') {
					element.value = value;
					// issue #56: setting the placeholder causes problems if the element continues to have focus.
					if (element != safeactiveelement()) {
						// we can't use `triggerhandler` here because of dummy text/password inputs :(
						setplaceholder.call(element);
					}
				} else if ($element.hasclass('placeholder')) {
					clearplaceholder.call(element, true, value) || (element.value = value);
				} else {
					element.value = value;
				}
				// `set` can not return `undefined`; see http://jsapi.info/jquery/1.7.1/val#l2363
				return $element;
			}
		};

		if (!isinputsupported) {
			valhooks.input = hooks;
			prophooks.value = hooks;
		}
		if (!istextareasupported) {
			valhooks.textarea = hooks;
			prophooks.value = hooks;
		}

		$(function() {
			// look for forms
			$(document).delegate('form', 'submit.placeholder', function() {
				// clear the placeholder values so they don't get submitted
				var $inputs = $('.placeholder', this).each(clearplaceholder);
				settimeout(function() {
					$inputs.each(setplaceholder);
				}, 10);
			});
		});

		// clear placeholder values upon page reload
		$(window).bind('beforeunload.placeholder', function() {
			$('.placeholder').each(function() {
				this.value = '';
			});
		});

	}

	function args(elem) {
		// return an object of element attributes
		var newattrs = {};
		var rinlinejquery = /^jquery\d+$/;
		$.each(elem.attributes, function(i, attr) {
			if (attr.specified && !rinlinejquery.test(attr.name)) {
				newattrs[attr.name] = attr.value;
			}
		});
		return newattrs;
	}

	function clearplaceholder(event, value) {
		var input = this;
		var $input = $(input);
		if (input.value == $input.attr('placeholder') && $input.hasclass('placeholder')) {
			if ($input.data('placeholder-password')) {
				$input = $input.hide().next().show().attr('id', $input.removeattr('id').data('placeholder-id'));
				// if `clearplaceholder` was called from `$.valhooks.input.set`
				if (event === true) {
					return $input[0].value = value;
				}
				$input.focus();
			} else {
				input.value = '';
				$input.removeclass('placeholder');
				input == safeactiveelement() && input.select();
			}
		}
	}

	function setplaceholder() {
		var $replacement;
		var input = this;
		var $input = $(input);
		var id = this.id;
		if (input.value == '') {
			if (input.type == 'password') {
				if (!$input.data('placeholder-textinput')) {
					try {
						$replacement = $input.clone().attr({ 'type': 'text' });
					} catch(e) {
						$replacement = $('<input>').attr($.extend(args(this), { 'type': 'text' }));
					}
					$replacement
						.removeattr('name')
						.data({
							'placeholder-password': $input,
							'placeholder-id': id
						})
						.bind('focus.placeholder', clearplaceholder);
					$input
						.data({
							'placeholder-textinput': $replacement,
							'placeholder-id': id
						})
						.before($replacement);
				}
				$input = $input.removeattr('id').hide().prev().attr('id', id).show();
				// note: `$input[0] != input` now!
			}
			$input.addclass('placeholder');
			$input[0].value = $input.attr('placeholder');
		} else {
			$input.removeclass('placeholder');
		}
	}

	function safeactiveelement() {
		// avoid ie9 `document.activeelement` of death
		// https://github.com/mathiasbynens/jquery-placeholder/pull/99
		try {
			return document.activeelement;
		} catch (exception) {}
	}

}(this, document, jquery));