String.prototype.ltrim=function (){

	return this.replace(/^\s*(.+?)$/,'$1');


}
//这里引用prototype的五个方法
function new$(){
	return document.getElementById(arguments[0]);

}
Object.extend=function (destination,source){

	for(property in source)destination[property]=source[property];
	return destination;

}
function $A(iterable){

	var results=[];

	for(var i=0;i<iterable.length;i++)results.push(iterable[i]);
	return results;

}
Function.prototype.bindAsEventListener=function (object){

	var __method=this;

	return function (event){

		return __method.call(object,event||window.event);


	}

}
Function.prototype.bind=function (){

	var __method=this,args=$A(arguments),object=args.shift();

	return function (){

		return __method.apply(object,args.concat($A(arguments)));


	}

}
var hansir={
}

hansir.AjAx=function (){
	this.initialize.apply(this,arguments);

}
hansir.AjAx.prototype={

	initialize:function (complete,method,url){

		this.complete=complete;

		this.method=method||'post';

		this.url=url;

		if(this.method=='get')this.url+=(this.url.match(/\?/)?'&':'?');


	},
	xmlHttp:function (){

		var xmlHttp;

		if(window.XMLHttpRequest)xmlHttp=new XMLHttpRequest();

		else if(window.ActiveXObject)
		try{

			xmlHttp=new ActiveXObject('Msxml2.XMLHTTP');


		}catch(errr){

			xmlHttp=new ActiveXObject('Microsoft.XMLHTTP');


		}
		return xmlHttp;


	},
	request:function (parameters){

		var xmlHttp=this.xmlHttp();

		var send_val=null;

		this.method=='get'?this.url+=parameters:send_val=parameters;

		xmlHttp.open(this.method,this.url,true);

		xmlHttp.setRequestHeader('Content-type','application/x-www-form-urlencoded; charset=utf-8');

		xmlHttp.onreadystatechange=this.ready_handler.bind(this,xmlHttp);

		xmlHttp.send(send_val);


	},
	ready_handler:function (xmlHttp){

		if(xmlHttp.readyState==4){

			if(this.success(xmlHttp)){

				this.complete.load_data(xmlHttp);


			}

		}

	},
	success:function (xmlHttp){
		return xmlHttp.status==0||xmlHttp.status>=200&&xmlHttp.status<300
	}

}
hansir.TextSuggest=function (){
	this.initialize.apply(this,arguments);

}
hansir.TextSuggest.prototype={

	initialize:function (){

	},
	add_suggest:function (inp,url,method,defer,defer2){

		var inp=new$(inp);

		inp.defer=defer||null;

		inp.defer2=defer2||200;

		var sw=inp.offsetWidth,sh=inp.offsetHeight;

		inp.suggest_list=this.create_list(sw,sh);
             
		inp.suggest_list.par=inp;
                
               

		inp.xmlHttp=new hansir.AjAx(inp.suggest_list,method,url);

		Object.extend(inp,{

			requesting:false,
			last_result:true,
			previous_value:null,
			last_value:null,
			kt:null,
			rt:null,
			load_event:function (){

				if(this.addEventListener){

					this.addEventListener('input',this.keyup_handler.bindAsEventListener(this),false);


				}else if(this.attachEvent){

					this.attachEvent('onkeyup',this.keyup_handler.bindAsEventListener(this));


				}

			},
			keyup_handler:function (e){

				var intKey;

				window.event?intKey=event.keyCode:intKey=e.which;

				if(intKey==38||intKey==40||intKey==13||intKey==37)return ;

				if(this.requesting)return ;

				var val=this.value.ltrim();

				this.last_value=val;

				if(val==this.previous_value)return ;

				if(val==''){

					this.previous_value='';

					this.last_value='';
                                 
					this.suggest_list.hidden_new();

					this.suggest_list.clear_data();

					return ;


				}
				if(new RegExp('^'+this.last_result,'i').test(val))return ;

				this.last_result=true;

				this.previous_value=val;

				if(this.kt)clearTimeout(this.kt);

				this.defer?this.kt=setTimeout(this.send_request.bind(this),this.defer):this.send_request();


			},
			onblur:function (){
                
				setTimeout(this.suggest_list.hidden_new.bind(this.suggest_list),100);


			},
			onkeydown:function (e){
				// 上下、回车键事件
				if(!this.suggest_list.rows.length)return ;

				var intKey;

				window.event?intKey=event.keyCode:intKey=e.which;

				switch(intKey){

					case 38:
					if(this.suggest_list.style.visibility=='hidden'){

						this.suggest_list.visible_new();

						return ;


					}
					var val=this.suggest_list.select_index(1);

					val?this.value=val:this.value=this.last_value;

					break;

					case 40:
					if(this.suggest_list.style.visibility=='hidden'){

						this.suggest_list.visible_new();

						return ;


					}
					var val=this.suggest_list.select_index(0);

					val?this.value=val:this.value=this.last_value;

					break;

					case 13:
					if(this.suggest_list.cur_tr!=-1){
                                       
						this.suggest_list.hidden_new();

						break;


					}
					case 39:
					this.suggest_list.hidden_new();

					this.keyup_handler('o');


				}

			},
			send_request:function (){
				// 请求数据
				this.requesting=true;

				var val=this.value;
				var s_type = $("#s_type").val();

				var parameters='keyword='+val.ltrim()+"&t="+s_type;


				this.xmlHttp.request(parameters);

				this.start_hidden_time();


			},
			start_hidden_time:function (){

				if(this.rt)clearTimeout(this.rt);

				this.rt=setTimeout(this.list_hidden.bind(this),this.defer2);


			},
			list_hidden:function (){

				if(this.requesting)this.suggest_list.hidden_new();


			}

		});

		inp.load_event();


	},
	create_list:function (w,h){
		//创建列表
		var table=document.createElement('table');

		table.cellSpacing=0;

		document.body.appendChild(table);

		table.className='tab_suggest';

		table.style.width=w+'px';

		table.parh=h-1;

		Object.extend(table,{

			cur_tr:-1,
			set_pos:function (){
				// 下垃框位置
				var x=0,y=0,inp=this.par;

				while(inp!=null){
					x+=inp.offsetLeft;
					y+=inp.offsetTop;
					inp=inp.offsetParent;

				}
				inp=null;

				table.style.left=x+'px';

				table.style.top=y+this.parh+'px';


			},
			add:function (str,num){

				var n=0;

				this.rows.length?n=this.rows.length:n=0;

				var tr=this.insertRow(n);

				var th=document.createElement('th');

				var td=document.createElement('td');

				th.innerHTML=str,td.innerHTML=num;

				tr.appendChild(th),tr.appendChild(td);

				tr.num=this.rows.length-1;

				tr.par=this;

				tr.onmousedown=function (){

					var par=this.par.par;

					par.value=this.cells[0].innerHTML;

					do_suggest();

				}

				tr.onmouseover=function (){

					var par=this.par;

					if(par.cur_tr!=-1&&par.cur_tr!=this.num){

						par.rows[par.cur_tr].className='';

						this.className='cur';

						par.cur_tr=this.num;


					}else {

						this.className='cur';

						par.cur_tr=this.num;


					}

				}
				tr=null,th=null,td=null;


			},
			load_data:function (xmlHttp){
				// 加载列表
				var inp=this.par;

				if(inp.previous_value!=inp.value){

					inp.requesting=false;

					this.clear_data();

					inp.keyup_handler('o');

					return ;


				}
				var arr=xmlHttp.responseText;

				if(arr.ltrim()=='null'){

					inp.last_result=inp.value;

					inp.requesting=false;

					inp.suggest_list.hidden_new();

					this.clear_data();

					return ;


				}
				var cur_data=eval(arr);

				this.clear_data();

				for(var i=0;i<cur_data.length;i++)this.add(cur_data[i][0],cur_data[i][1]);
				this.cur_tr=-1;
				this.visible_new();
				inp.requesting=false;

			},
			clear_data:function (){
				while(this.rows.length)this.deleteRow(this.rows[0])
			},// 清空列表
			select_index:function (n){
				// 移动选项
				if(n){

					if(this.cur_tr==0){

						this.rows[0].className='';

						this.cur_tr=-1;

						return false;


					}else {

						this.cur_tr==-1?this.cur_tr=this.rows.length:this.rows[this.cur_tr].className='';

						this.cur_tr=this.cur_tr-1;

						this.rows[this.cur_tr].className='cur';

						return this.rows[this.cur_tr].cells[0].innerHTML;


					}

				}else {

					if(this.cur_tr==(this.rows.length-1)){

						this.rows[this.cur_tr].className='';

						this.cur_tr=-1;

						return false;


					}else {

						if(this.cur_tr!=-1)this.rows[this.cur_tr].className='';

						this.cur_tr=this.cur_tr+1;

						this.rows[this.cur_tr].className='cur';

						return this.rows[this.cur_tr].cells[0].innerHTML;


					}

				}

			},
			hidden_new:function (){
                    
				this.style.visibility='hidden';

			},// 隐
			visible_new:function (){
				this.set_pos();
				this.style.visibility='visible';

			}// 显

		});

		return table;


	}

}


function do_suggest() {
    $('#header_s_form').submit();
}