var $w = window;
var $d = document;
var $l = location;
function $i(s){return $d.getElementById(s);}
function $t(s){return $d.getElementsByTagName(s);}
function $n(s){return $d.getElementsByName(s);}

var _jsc = {};
if(!_jschome)var _jschome='http://www.lanrentuku.com/lanren/jscode/';

_jsc.loaded = false;

_jsc.client = (function(){	
	var t = {};
	var b = navigator.userAgent.toLowerCase();
	t.isOpera = (b.indexOf('opera') > -1);
	t.isIE = (!t.isOpera && b.indexOf('msie') > -1);
	t.isFF = (!t.isOpera &&!t.isIE&&b.indexOf('firefox') > -1);
	return t;
})();

_jsc.util = (function(){
	var t = {};
	t.addEvent = function(o,c,h){
		if(_jsc.client.isIE){
			o.attachEvent('on'+c,h);
		}else{
			o.addEventListener(c,h,false);
		}
		return true;
	};


	return t;
})();



_jsc.evt = (function(){
	var t = {};
	t.gTar = function(oe){
		if(_jsc.client.isIE){
			return oe.srcElement;
		}else{
			return oe.target;
		}
	};
	
	return t;
})();



// tab切换
function tabswitch(c, config){
	this.config = config ? config : {start_delay:3000, delay:1500};
	this.container = $i(c);
	this.pause = false;
	this.nexttb = 1;
	this.tabs = this.container.getElementsByTagName('dt');
	var _this = this;
	if(this.tabs.length<1)this.tabs = this.container.getElementsByTagName('li');
	for(var i = 0; i < this.tabs.length; i++){
		var _ec = this.tabs[i].getElementsByTagName('span');
		if(_ec.length<1)_ec = this.tabs[i].getElementsByTagName('a');
		if(_ec.length<1){
			_ec = this.tabs[i]
		}else{
			_ec = _ec[0];
		}
		_ec.onmouseover = function(e) {
			_this.pause = true;
			var ev = !e ? window.event : e;
			_this.start(ev, false, null);
		};
		
		_ec.onmouseout = function() {
			_this.pause = false;
		};
		
		try{
			$i(this.tabs[i].id + '_body_1').onmouseover = function(){
				_this.pause = true;
			};
			
			$i(this.tabs[i].id + '_body_1').onmouseout = function(){
				_this.pause = false;
			};
		}catch(e){}
	}

	if ($i(c + '_sts')) {
		var _sts = $i(c + '_sts');
		var _step = _sts.getElementsByTagName('li');
		if(_step.length<1)_step = _sts.getElementsByTagName('div');
		_step[0].onclick = function() {
			if (_this.tabs[_this.tabs.length-1].className.indexOf('current') > -1) {
				_this.nexttb = _this.tabs.length + 1;
			};
			_this.nexttb = _this.nexttb - 2 < 1 ? _this.tabs.length : _this.nexttb - 2;
			//alert(_this.nexttb);
			_this.start(null, null, _this.nexttb);
		};
		
		_step[1].onclick = function() {
			_this.nexttb = _this.nexttb < 1 ? 1 : _this.nexttb;
			_this.start(null, null, _this.nexttb);
		};
	};
	
	this.start = function(e, r, n){
		if(_this.pause && !e)return;
		if(r){
			curr_tab = $i(_this.container.id + '_' + rand(4));
		}else{
			if(n){
				//alert(_this.container.id + '_' + _this.nexttb);
				curr_tab = $i(_this.container.id + '_' + _this.nexttb);
			}else{
				curr_tab = _jsc.evt.gTar(e);
				if(curr_tab.id=="")curr_tab = curr_tab.parentNode;
			}
		}
		
		var tb = curr_tab.id.split("_");
		for(var i = 0; i < _this.tabs.length; i++){
			if(_this.tabs[i]==curr_tab){
				_this.tabs[i].className="current";
				try{
					//alert(_this.tabs[i].id);
					$i(_this.tabs[i].id + '_body_1').style.display = "block";
				}catch(e){}
			}else{
				_this.tabs[i].className="";
				try{
					$i(_this.tabs[i].id + '_body_1').style.display = "none";
				}catch(e){}
			}
		}
		_this.nexttb = parseInt(tb[tb.length-1]) >= _this.tabs.length ? 1 : parseInt(tb[tb.length-1]) + 1;
	};
}


var banners, new_trans, super_rec, crazy_buy, star,bargain_scroll,buy_ok_div;
var select_pr,select_pc,select_cpk;
_jsc.util.addEvent(window, 'load', function() {
		if ($i('banners')) {	
			banners = new tabswitch('banners', {});
			setInterval("banners.start(null, null, 1);", 4000);
		}
		
		
});

function swap_tag_1_(n){
	for(var i=1;i<=4;i++){
		var curC=document.getElementById("tag_1_"+i);
		var curB=document.getElementById("tag_1_b"+i);
		if(n==i){
			curC.style.display="block";
			curB.className="current"
		}else{
			curC.style.display="none";
			curB.className=""
			
		}
	}
}