输入框自动补全功能

调用：
var stringArrays=["zhangsan","lisi","wangwu"];
$('#inputId').AutoComplete({
	'inputDivId':'winDiv',
	'data':stringArrays ,
	'itemHeight': 24,
	'width': 529
}).AutoComplete('show');

css：
/* input autocomplete  自动输入提示*/
div.ac {border: 1px solid #ccc;;overflow: auto;background-color: #ffffff;}
div.ac > ul > li {word-break: break-all;list-style-type:none; } 
div.ac > ul > li > div {display: table-row;width: 100%;}
div.ac > ul > li > div em {color:#333;font-style: normal;}
div.ac > ul > li.normal {padding: 2px 0px 2px 5px;}
div.ac > ul > li.normal > div > span,div.ac > ul > li.iconList > div > span{display: table-cell;vertical-align: middle;color:#333;}
div.ac > ul > li.iconList {padding: 0px 0px 0px 2px;}
div.ac > ul > li.iconList > div > div {display: table-cell;vertical-align: middle;padding-right: 5px;}
div.ac > ul > li.iconList > div > div > img {display: table;display: table-cell\9;}  
div.ac > ul > li.selected {background-color: #eeeeee;}

.input-prompt-div {}

js:
/*
* jQuery.autocomplete.js (v1.1.2)
* authored by nswish ([email protected])
* jQuery 1.7.1+ support
* compatible: ie/chrome/firefox/opera/safari
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(
function(g){
	g.fn.extend({
		"AutoComplete":function(q){
			return this.each(function(){
				if(!(this&&this.tagName==="INPUT"&&this.type==="text")){return}
				if(this.controller){this.controller.setOption(q)}
				else{
					if(g.isPlainObject(q)){this.controller=new f(this,q)}
				}
			})
		}
	});
	var f=function(q,r){
		this.option=g.extend(false,{"inputDivId":null,"width":null,
			"maxHeight":null,"itemHeight":null,"listStyle":"normal",
			"listDirection":"down","data":[],"ajaxDataType":"json",
			"ajaxParams":{},"ajaxTimeout":3000,"ajaxType":"GET",
			"maxItems":20,"matchHandler":n,"emphasisHandler":m,
			"createItemHandler":null,"beforeLoadDataHandler":null,
			"afterSelectedHandler":null,"async":false,"emphasis":true,"onerror":null
			},r);
		b.apply(this,[q]);
		j.apply(this)};
		var b=function(q){
			var r=this;
			this.inputView=g(q);
			this.inputView.attr("autocomplete","off")
			.keyup(this._keyup=function(s){
				switch(s.keyCode){
					case 13:case 16:case 17:case 37:case 38:case 39:case 40:break;case 27:e.apply(r);break;
					default:if(r.option.async){setTimeout(function(){h.apply(r)},0)}else{h.apply(r)}
				}})
			.keydown(this._keydown=function(t){
				switch(t.keyCode){case 38:p.apply(r,["up"]);break;
					case 40:p.apply(r,["down"]);break;
					case 13:var s=r.searchView.is(":visible");c.apply(r);if(s){return false}break
				}})
			.blur(this._blur=function(){
				g(document).one("click",function(){
					e.apply(r)}
				)})
		};
		var j=function(){
			var q=this;this.searchView=g("<div class='ac'><ul></ul></div>").appendTo($("#"+this.option.inputDivId))//input对应的div放入进去
				.on("mouseenter","li",function(){
					q.searchView.find("li.selected").removeClass("selected");
					g(this).addClass("selected")
				})
				.on("mouseleave","li",function(){
					g(this).removeClass("selected")
				})
				.on("click","li",function(){
					c.apply(q);e.apply(q)
				})
				.css("font-size",this.inputView.css("font-size"));
			g(window).resize(function(){k.apply(q)})
		};
		var i=function(q){
			var s=this,r=this.searchView.find("ul").empty();
			if(g.inArray(this.option.listStyle,["normal","iconList","custom"])==-1){
				throw ["閬囧埌鏈煡鐨刲istStyle鍙傛暟锛�"]
			}
			g.each(q,function(u,w){
				var v=g("<li><div></div></li>").appendTo(r).addClass(s.option.listStyle).data("data",w).find("div");
				switch(s.option.listStyle){
					case"normal":v.append("<span>"+w.label+"</span>");break;
					case"iconList":var t=g("<img></img>").attr("src",w.image);
						v.append(g("<div></div>").append(t)).append("<span>"+w.label+"</span>");break;
					case"custom":v.append(s.option.createItemHandler.apply(s,[u,w]));case"default":break
				}
				if(s.option.itemHeight>0){v.height(s.option.itemHeight).css("max-height",s.option.itemHeight)}})
		};
		var k=function(){
			if(this.option.listDirection==="down"){
				var r=this.inputView.offset().top+this.inputView.outerHeight()
			}
			else{
				if(this.option.listDirection==="up"){
					var r=this.inputView.offset().top-this.searchView.outerHeight()
				}
				else{throw"閬囧埌鏈煡鐨刲istDirection鍙傛暟锛�"}
			}
			var q=this.inputView.offset().left;
			this.searchView.css("top",r+"px").css("left",q+"px")};
			var d=function(){
				if(typeof(this.option.width)==="string"&&this.option.width.toLowerCase()==="auto"){return this.inputView.outerWidth()-2}
				else{
					if(typeof(this.option.width)==="number"){
						return this.option.width
					}
					else{throw"閬囧埌鏈煡鐨剋idth鍙傛暟锛�"}
				}
			};
			var l=function(q){
				var s=this;
				if(this.option.listDirection==="up"){
					q=q.reverse()
				}
				try{
					i.apply(s,[q]);
					if(this.option.maxHeight>0){
						this.searchView.css("max-height",this.option.maxHeight+"px");
						if(g.browser.msie){
							this.searchView.css("height",this.searchView.height()>this.option.maxHeight?this.option.maxHeight+"px":"auto")
					}}
					k.apply(this);
					this.searchView.css("width",d.apply(this)+"px")
				}
				catch(r){
					o.apply(this,[r+""]);
					return
				}
				this.searchView.show();p.apply(this,[this.option.listDirection])};
				var e=function(){this.searchView.find("ul").empty();this.searchView.hide()};
				var p=function(s){
					var t=this.searchView.find("li.selected");
					if(t.size()){var q=s==="up"?t.prev():t.next()}
					else{var q=s==="up"?this.searchView.find("li").last():this.searchView.find("li").first()}
					if(q.size()){
						this.searchView.find("li").removeClass("selected");q.addClass("selected");
						var u=q.outerHeight();var r=q.position().top;
						if(u+r>this.searchView.height()){
							this.searchView.scrollTop(this.searchView.scrollTop()+r+u-this.searchView.height())
						}
						else{
							if(r<0){this.searchView.scrollTop(this.searchView.scrollTop()+r)}
						}
					}
				};
				var c=function(){
					var r=this,q=this.searchView.find("li.selected");
					if(q.size()){var s=q.data("data");this.inputView.val(s.value);
						if(g.isFunction(this.option.afterSelectedHandler)){
							try{
								this.option.afterSelectedHandler.apply(r,[s])
							}catch(t){
								o.apply(this,["璋冪敤afterSelectedHandler閿欒:"+t]);return
							}
						}
						e.apply(this)
					}
				};
				var a=function(q){
					jQuery.support.cors=true;
					var s=this,t=[],
					r={"async":false,
						"dataType":s.option.ajaxDataType,
						"type":s.option.ajaxType,
						"timeout":this.option.ajaxTimeout,
						"success":function(u,w,v){
							if(s.option.ajaxDataType==="xml"){
								g(u).find("item").each(function(){
									var z={"value":g(this).text(),"label":g(this).text()};
									for(var y=0;y<this.attributes.length;y++){
										var x=this.attributes[y].nodeName,A=this.attributes[y].nodeValue;z[x]=A}t.push(z)
								})
							}
							else{
								if(s.option.ajaxDataType==="json"){
									t=u}else{throw"閬囧埌鏈煡鐨刟jaxDataType鍙傛暟锛�"}
							}
						},
						"error":function(u,w,v){throw v}
					};
					if(g.isPlainObject(this.option.ajaxParams)){
						r["data"]=g.extend(false,{"keyword":q},this.option.ajaxParams)
					}
					else{
						if(g.isFunction(this.option.ajaxParams)){
							r["data"]=g.extend(false,{"keyword":q},
									this.option.ajaxParams.apply(this,[q]))
						}
						else{
							if(typeof(this.option.ajaxParams)==="string"){
								r["data"]="keyword="+q+"&"+this.option.ajaxParams
							}
							else{
								throw"閬囧埌鏈煡鐨刟jaxParams鍙傛暟锛�"}
							
						}
					}
					g.ajax(this.option.data,r);
					return t
				};
				var h=function(){
					var t=this,s=this.inputView.val(),u=[],r=true,q=[];
					if(g.trim(s).length==0){e.apply(t);return}
					if(g.isFunction(this.option.beforeLoadDataHandler)){
						try{
							r=this.option.beforeLoadDataHandler.apply(this,[s])
						}
						catch(v){
							o.apply(this,["璋冪敤beforeLoadDataHandler閿欒:"+v]);
							return
						}
					}
					if(r){if(g.isArray(this.option.data)){u=this.option.data}else{if(g.isFunction(this.option.data)){try{u=this.option.data.apply(this,[s])}catch(v){o.apply(this,["璋冪敤data閿欒:"+v]);return}}else{if(typeof(this.option.data)==="string"){try{u=a.apply(this,[s])}catch(v){o.apply(this,["Ajax閿欒:"+v]);return}}else{o.apply(this,["閬囧埌鏈煡鐨刣ata鍙傛暟锛�"]);return}}}}g.each(u,function(w,y){if(t.option.maxItems>0&&q.length>=t.option.maxItems){return false}if(g.isPlainObject(y)){var x=g.extend(false,{},y)}else{if(typeof(y)==="string"){var x={"label":y,"value":y,"image":y}}else{o.apply(t,["鏁版嵁婧怚tem绫诲瀷閿欒锛�"]);return false}}if(t.option.matchHandler.apply(t,[s,x])){q.push(x)}});if(s==this.inputView.val()){if(q.length>0){l.apply(this,[q])}else{e.apply(this)}}};var o=function(q){if(g.isFunction(this.option.onerror)){this.option.onerror.apply(this,[q])}};f.prototype.setOption=function(q){if(g.isPlainObject(q)){this.option=g.extend(false,this.option,q)}else{if(typeof(q)==="string"){switch(q){case"destroy":this.destroy();break;case"show":this.show();break;default:o.apply(this,["鏈煡鐨凙utoComplete鍙傛暟锛�"]);return}}else{o.apply(this,["鏈煡鐨凙utoComplete鍙傛暟绫诲瀷锛�"]);return}}};f.prototype.destroy=function(){this.searchView.remove();this.inputView.unbind("keyup",this._keyup).unbind("keydown",this._keydown).unbind("blur",this._blur);delete this.inputView.get(0).controller};f.prototype.show=function(){if(this.option.async){setTimeout(function(){h.apply(this)},0)}else{h.apply(this)}};var n=function(q,s){var r=RegExp(q.replace(/([.?*+^$[\]\\(){}|-])/g,"\\$1"),"i");if(this.option.emphasis&&g.isFunction(this.option.emphasisHandler)){this.option.emphasisHandler.apply(this,[q,s])}return r.test(s.value)};var m=function(q,s){var r=RegExp("("+q.replace(/([.?*+^$[\]\\(){}|-])/g,"\\$1")+")","ig");s.label=s.label.replace(r,"<em>$1</em>")}})(jQuery);