// JavaScript Document
//内页右侧导航
function changeDaoHang(n)
{	
	var nav = document.getElementById("daohang").getElementsByTagName("li");
	for(var i=0;i<nav.length;i++)
	{
		nav[i].className="fww";
		nav[n].className="fwg";
	}	
}
function changeDao(n)
{	
	document.getElementById(n).className="fwg";	
}

function changeTabFw(n)
{	
	var tabfw = document.getElementById("tabfw").getElementsByTagName("li");
	var tebfucont = document.getElementById("tebfucont").getElementsByTagName("li");
	for(var i=0;i<tabfw.length;i++)
	{
		tabfw[i].className="sec1";
		tabfw[n].className="sec2";		
	}	
	for(var i=0;i<tebfucont.length;i++)
	{
		tebfucont[i].style.display="none";
		tebfucont[n].style.display="block";
	}
}
//导航更换图片
function changeNav(n)
{
    var nav = document.getElementById("nav").getElementsByTagName("img");
    for(var i=0;i<nav.length;i++)
    {
        nav[i].src="images/Nav_0"+i+".jpg";
        nav[n].src="images/Nav_0"+n+"b.jpg";
    }
    
}
//项目切换背景
function changexm(n)
{
    var xm = document.getElementById("Fuwu1_xiangmu").getElementsByTagName("span");
    for(var i=0;i<xm.length;i++)
    {
        xm[i].className="";
        xm[n].className="rlog";
    }
}
function changeDaoxm(n)
{	
    document.getElementById("xm"+n).className="rlog";

}
//展开闭合套餐内容
function openAll(n)
{
    var obj = document.getElementById(n);
    var objname = document.getElementById("a"+n);   
    if(obj.style.display=="block")
    {
        obj.style.display="none";
        objname.innerHTML="向下展开";
    }
    else
    {
        obj.style.display="block";
        objname.innerHTML="向上闭合";
    }
    
}

function chenckFrom()
{    
    var sname = document.getElementById("name");
    var email = document.getElementById("Email");
    var tel = document.getElementById("tel");
    var detail = document.getElementById("TextBox2");
    var yix = document.getElementsByName("feedback_yx");
    var ys = document.getElementsByName("radiobutton");
    var text4 = document.getElementById("Text4");   
    var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/; //验证邮箱
    var reg = /^(((\()?\d{2,4}(\))?[-(\s)*]){0,2})?(\d{7,8})$/; //验证电话
    if(sname.value=="")
    {
        alert('请输入姓名！');
        return false;
    }
    if(email.value=="")
    {
        alert('请输入邮箱地址！');
        return false;
    }
    if(!myreg.test(email.value))
    {
        alert('请输入有效的邮箱地址！');                
        return false;
    }
    if(tel.value=="")
    {
        alert('请输入联系方式')
        return false;
    }
      
    if(!reg.test(tel.value))
    {
        alert('请输入有效的电话');
        return false;
    }

    if(detail.value=="")
    {
        alert('请输入需求！');
        return false;
    }
    if(document.all.feedback_yx.value=='')
    {
        alert('请选择意向！');
        return false;
    }
    if(text4.value=="")
    {
         alert("请输入验证码！");
         return false;
    }     
     return true;
    
}