/*============供应信息=============*/
function changeTab(n){
    //tab个数
    var len=3;
    for(i=1;i<=len;i++){
	    document.getElementById("tab_"+i).style.display=(i==n)?"block":"none";
	    document.getElementById("tab_head_"+i).className=(i==n)?"isactive":"none";
		//document.getElementById("hand"+i).className=(i==n)?"hands":"none";
    }
}
var timeout; 
function delayChangeTab(m,n){
    timeout = setTimeout("changeTab("+m+")",n);
}
function cancelChangeTab(){
    clearTimeout(timeout);
}
/*=============泵阀最新报价============*/

function changeTaa(n){
    //tab个数
    var len=2;
	document.getElementById("hands_one").className=(n-1==0)?"handss":"hands";
    for(i=1;i<=len;i++){
	    document.getElementById("taa_"+i).style.display=(i==n)?"block":"none";
	    document.getElementById("taa_head_"+i).className=(i==n)?"isactive":"none";
    }
}
var timeout; 
function delayChangeTaa(m,n){
    timeout = setTimeout("changeTaa("+m+")",n);
}
function cancelChangeTaa(){
    clearTimeout(timeout);
}
/*=============展会信息============*/

function changeTad(n){
    //tab个数
    var len=2;
    for(i=1;i<=len;i++){
	    document.getElementById("tad_"+i).style.display=(i==n)?"block":"none";
	    document.getElementById("tad_head_"+i).className=(i==n)?"isactive":"none";
    }
}
var timeout; 
function delayChangeTad(m,n){
    timeout = setTimeout("changeTad("+m+")",n);
}
function cancelChangeTad(){
    clearTimeout(timeout);
}


function chklogin(){
	if(document.getElementById('username').value == "" || document.getElementById('upwd').value == ""){
		window.location.href="member/login.php";
		return false;
	}
}

function linkss(){
	//var now_url = 
	if(document.getElementById("hands_one").className=="hands"){
		window.open("pv_qiugou.php");
	}else{
		//location.href="/member/?ac=gy";		
		window.open("/member/?ac=gy");
	}
}


function isEmail(s)
{
        if (s.length > 100)
                return false;
         var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[_.0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|NET|com|COM|gov|GOV|mil|MIL|org|ORG|edu|EDU|int|INT|INFO|info|tom|TOM|cn|CN)$";
         var re = new RegExp(regu);
         if (s.search(re) != -1)
              return true;
          else 
             return false;
}

//首页对网站提意见或建议功能，此处采用ajax发送
function send_message(){
	if( $("#user_advice").val() == "") { 
		alert("请输入您对我站的意见或建议！"); 
		$("#suer_advice").focus(); 
		return false; 
	}
	if( $("#user_email").val() == ""){ 
	alert("请输入您的联系Email！"); 
	$("#user_email").focus(); 
	return false; 
	}else{
		if(!isEmail($("#user_email").val())){ 
			alert("请输入正确的Email格式！"); 
			$("#user_email").focus(); 
			return false; 
		}
	}
	//构造需要发送的数据
   var domain = document.domain;
   var advice_str = "user_advice="+$("#user_advice").val()+"&user_email="+$("#user_email").val()+"&domain=" +domain;
   $.ajax({
		url:"ajax_message.php",         //后台处理程序
		type:'post',         //数据发送方式
		dataType:'json',     //接受数据格式
		error:send_failure,
		timeout:10000,
		data:advice_str,         //要传递的数据
		success:send_ok  //回传函数(这里是函数名)			
	});
}
function send_failure(){
	alert("服务器忙,您的意见发送失败,请重试!");
    return false;	
}
function send_ok(json){
	if(json.flag =="Y"){
		alert("意见发送成功,谢谢您对我站所提的建议!");
		document.getElementById("user_advice").value = "";
		document.getElementById("user_email").value  = "";
	}else{
		alert (json.msg);		
	}
	return true;
}