;( function( window ) {
	
	'use strict';
	
	// eventlistener | @jon_neal | //github.com/jonathantneal/eventlistener
	!window.addeventlistener && window.element && (function () {
	   function addtoprototype(name, method) {
		  window.prototype[name] = htmldocument.prototype[name] = element.prototype[name] = method;
	   }
	 
	   var registry = [];
	 
	   addtoprototype("addeventlistener", function (type, listener) {
		  var target = this;
	 
		  registry.unshift({
			 __listener: function (event) {
				event.currenttarget = target;
				event.pagex = event.clientx + document.documentelement.scrollleft;
				event.pagey = event.clienty + document.documentelement.scrolltop;
				event.preventdefault = function () { event.returnvalue = false };
				event.relatedtarget = event.fromelement || null;
				event.stoppropagation = function () { event.cancelbubble = true };
				event.relatedtarget = event.fromelement || null;
				event.target = event.srcelement || target;
				event.timestamp = +new date;
	 
				listener.call(target, event);
			 },
			 listener: listener,
			 target: target,
			 type: type
		  });
	 
		  this.attachevent("on" + type, registry[0].__listener);
	   });
	 
	   addtoprototype("removeeventlistener", function (type, listener) {
		  for (var index = 0, length = registry.length; index < length; ++index) {
			 if (registry[index].target == this && registry[index].type == type && registry[index].listener == listener) {
				return this.detachevent("on" + type, registry.splice(index, 1)[0].__listener);
			 }
		  }
	   });
	 
	   addtoprototype("dispatchevent", function (eventobject) {
		  try {
			 return this.fireevent("on" + eventobject.type, eventobject);
		  } catch (error) {
			 for (var index = 0, length = registry.length; index < length; ++index) {
				if (registry[index].target == this && registry[index].type == eventobject.type) {
				   registry[index].call(this, eventobject);
				}
			 }
		  }
	   });
	})();

	// http://stackoverflow.com/a/11381730/989439
	function mobilecheck() {
		var check = false;
		(function(a){if(/(android|ipad|playbook|silk|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.useragent||navigator.vendor||window.opera);
		return check;
	}
	
	// http://www.jonathantneal.com/blog/polyfills-and-prototypes/
	!string.prototype.trim && (string.prototype.trim = function() {
		return this.replace(/^\s+|\s+$/g, '');
	});

	function uisearch( el, options ) {	
		this.el = el;
		this.inputel = el.queryselector( 'form > input.sb-search-input' );
		this._initevents();
	}

	uisearch.prototype = {
		_initevents : function() {
			var self = this,
				initsearchfn = function( ev ) {
					ev.stoppropagation();
					// trim its value
					self.inputel.value = self.inputel.value.trim();
					
					if( !classie.has( self.el, 'sb-search-open' ) ) { // open it
						ev.preventdefault();
						self.open();
					}
					else if( classie.has( self.el, 'sb-search-open' ) && /^\s*$/.test( self.inputel.value ) ) { // close it
						ev.preventdefault();
						self.close();
					}
				}

			this.el.addeventlistener( 'click', initsearchfn );
			this.el.addeventlistener( 'touchstart', initsearchfn );
			this.inputel.addeventlistener( 'click', function( ev ) { ev.stoppropagation(); });
			this.inputel.addeventlistener( 'touchstart', function( ev ) { ev.stoppropagation(); } );
		},
		open : function() {
			var self = this;
			classie.add( this.el, 'sb-search-open' );
			// focus the input
			if( !mobilecheck() ) {
				this.inputel.focus();
			}
			// close the search input if body is clicked
			var bodyfn = function( ev ) {
				self.close();
				this.removeeventlistener( 'click', bodyfn );
				this.removeeventlistener( 'touchstart', bodyfn );
			};
			document.addeventlistener( 'click', bodyfn );
			document.addeventlistener( 'touchstart', bodyfn );
		},
		close : function() {
			this.inputel.blur();
			classie.remove( this.el, 'sb-search-open' );
		}
	}

	// add to global namespace
	window.uisearch = uisearch;

} )( window );