var _$ = function(id,form){return "string" == typeof id ? (form ? eval("document.getElementById('"+form+"')."+id) : document.getElementById(id)) : id} //Firefoxid?
var _$gname = function(name){return document.getElementsByName(name)}
var _$tag = function(name){return document.getElementsByTagName(name)}
var _$gtag = function(name,tagName){return name ? _$(name).getElementsByTagName(tagName) : _$tag(tagName)}
var _$ihtml = function(id,s){_$(id).innerHTML = s}
var _$itext = function(id,s){_$(id).innerText = s}
var _$ivalue = function(id,s){_$(id).value = s}
var _$gclass = function(name){return getElementsByClassName(name)}
var _$db = function(id,form){form ? eval("_$('"+id+"','"+form+"').disabled = true") : _$(id).disabled = true}
String.prototype.trim = function(){return this.replace(/(^\s*)|(\s*$)/g,"")}

//AJAX
function a_ajax(){
 //初始化对象并发出XMLHttpRequest请求
 http_request = false;
 if (window.XMLHttpRequest) {           //Mozilla等其他浏览器
  http_request = new XMLHttpRequest();
  if (http_request.overrideMimeType) {
   http_request.overrideMimeType("text/xml");
  }
 } else if (window.ActiveXObject) {         //IE浏览器
  try {
   http_request = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
   try {
    http_request = new ActiveXObject("Microsoft.XMLHTTP");
     } catch (e) {}
  }
 }
 if (!http_request) {
  alert("不能创建XMLHTTP实例!");
  return false;
 }
 return http_request;
}
 
var http_request = false;
function createRequest(url,funs) {
 var http_request = a_ajax();	
 //alert(http_request);
 http_request.onreadystatechange = funs;         //指定响应方法
 
 http_request.open("GET", url, true);         //发出HTTP请求
 http_request.send(null);
}

//---------- 上下周
function turnweek(page) {
	url = "Function.asp?CurPage="+ page ;
	//url = encodeURI(url);
	createRequest(url,page_back); //ajax处理方法以及返回动作
}
function page_back() {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
  //alert(http_request.responseText);
        if(http_request.responseText=="Error"){
			alert("没有了"); 
			return false;
			}else{
				shows(http_request.responseText);
				//alert(1);
			}
		
  } else {
   alert('您请求的页面发现错误');
  }
 }
}


//======================= 
function Request(name){
var strHref = top.location.href;
var intPos = strHref.indexOf("#");
var strRight = strHref.substr(intPos + 1);
var arrTmp = strRight.split("&");
for(var i=0; i<arrTmp.length; i++){
var arrTemp = arrTmp[i].split("=");
if(arrTemp[0].toUpperCase() == name.toUpperCase()) return unescape(arrTemp[1]);
}
return null;
}

//======================= window.onload
window.onload = function(){
var tag = document.getElementsByTagName("A");
for(var i=0; i<tag.length; i++)tag[i].onfocus = function(){this.blur();}
var tagA = _$tag("Area");
for(var i=0; i<tagA.length; i++)tagA[i].onfocus = function(){this.blur();}
}

//======================= Menu
function SetDefault(id){
	
		for(i=1; i<9; i++){
			_$('menu'+i).className = 'menu1' + ' white';
			}
			_$('menu9').className = 'menu9 white';
		
		if(id==9){	
			_$('menu9').className = 'menu9_2 red';
		}else{
		    //_$('menu'+id).style.backgroundImage = "url(images/menubg1_2.jpg)";
		    _$('menu'+id).className = 'menu1_2' + ' red';
		}
	
}

function SetOver(id){
	
	if(nowid != id){_$('menu'+id).className = 'menu_bg white';}
	
}

function SetOut(id){
	
	if(nowid != id){_$('menu'+id).className = 'white';}
	
}

//======================= 订阅
function checkemail(){
  if (_$("email","send_email").value.length!=0){
  var sVal = _$("email","send_email").value;
  var sReg = /^[a-zA-Z0-9\._-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
  if(!sReg.test(sVal)){
  alert("邮箱格式不正确!");
  _$("email","send_email").focus();
  return false;
  }}else{
  alert("请输入邮箱！");
  _$("email","send_email").focus();
  return false;
  }
}

	//======================= 搜索
	function check_search(){
		var b = _$("keyword").value;
		var c = _$("sortid");
		var d = c.options[c.selectedIndex].value;
		//alert(d.length);
		
		if(b=="" || b=="输入产品关键词"){b=""}
		//alert(d);
		if(d.indexOf("C")>-1){
			var e = d.substr(1,d.length-1);
			location.href='product.php?keyword=' + escape(b) + '&classid=' + e;
			}
		else if(d.indexOf("N")>-1){
			var f = d.substr(1,d.length-1);
			location.href='product.php?keyword=' + escape(b) + '&nclassid=' + f + '&classid=0';
			}
		else{
			location.href='product.php?keyword=' + escape(b) + '&classid=' + d;
			}	
	}