function msg(){
	document.getElementById("msg1").style.display="none"
	document.getElementById("msg2").style.display="none"
}
function msgnone(ms,cont){
	document.getElementById(ms).style.display='block'
	document.getElementById(cont).style.display='none'
}
function aa1(){
	document.getElementById("content1").style.display="block"
	document.getElementById("content2").style.display="none"
	document.getElementById("content3").style.display="none"
	document.getElementById("content4").style.display="none"
	document.getElementById("content5").style.display="none"
	document.getElementById("content6").style.display="none"
}
function aa2(){
	document.getElementById("content1").style.display="none"
	document.getElementById("content2").style.display="block"
	document.getElementById("content3").style.display="none"
	document.getElementById("content4").style.display="none"
	document.getElementById("content5").style.display="none"
	document.getElementById("content6").style.display="none"
}
function aa3(){
	document.getElementById("content1").style.display="none"
	document.getElementById("content2").style.display="none"
	document.getElementById("content3").style.display="block"
	document.getElementById("content4").style.display="none"
	document.getElementById("content5").style.display="none"
	document.getElementById("content6").style.display="none"
}
function aa4(){
	document.getElementById("content1").style.display="none"
	document.getElementById("content2").style.display="none"
	document.getElementById("content3").style.display="none"
	document.getElementById("content4").style.display="block"
	document.getElementById("content5").style.display="none"
	document.getElementById("content6").style.display="none"
}
function aa5(){
	document.getElementById("content1").style.display="none"
	document.getElementById("content2").style.display="none"
	document.getElementById("content3").style.display="none"
	document.getElementById("content4").style.display="none"
	document.getElementById("content5").style.display="block"
	document.getElementById("content6").style.display="none"
}
function aa6(){
	document.getElementById("content1").style.display="none"
	document.getElementById("content2").style.display="none"
	document.getElementById("content3").style.display="none"
	document.getElementById("content4").style.display="none"
	document.getElementById("content5").style.display="none"
	document.getElementById("content6").style.display="block"
}
function checkbookly(){
	if (document.bookly.pic.value.length==0){
		alert("出错了，留言主题没有填写。");
		document.bookly.pic.focus();
		return false;
	}
	if (document.bookly.Comments.value.length==0){
		alert("出错了，您没有填写留言内容。");
		document.bookly.Comments.focus();
		return false;
	}
	if (document.bookly.Comments.value.length>225)
	{
		alert("出错了，您的留言太长了。");
		document.bookly.Comments.focus();
		return false;
	}
	return true;
}

function checkbookzx(){
	if (document.bookzx.UserName.value.length==0){
		alert("出错了，您没有填写姓名。");
		document.bookzx.UserName.focus();
		return false;
	}
	if (document.bookzx.UserName.value.length<2||document.bookzx.UserName.value.length>16){
		alert("出错了，您填写的用户名不符合要求。");
		document.bookzx.UserName.focus();
		return false;
	}
	if (document.bookzx.usermail.value.length==0){
		alert("出错了，您没有填写邮箱。");
		document.bookzx.usermail.focus();
		return false;
	}
	if (document.bookzx.tele.value.length==0){
		alert("出错了，您没有填写电话。");
		document.bookzx.tele.focus();
		return false;
	}
	if (document.bookzx.tit.value.length==0){
		alert("出错了，您没有填写订购产品。");
		document.bookzx.tit.focus();
		return false;
	}
	if (document.bookzx.pic.value.length==0){
		alert("出错了，您没有填写详细地址。");
		document.bookzx.pic.focus();
		return false;
	}
	if (document.bookzx.Comments.value.length==0){
		alert("出错了，您没有填写留言内容。");
		document.bookzx.Comments.focus();
		return false;
	}
	if (document.bookzx.Comments.value.length>225)
	{
		alert("出错了，您的留言太长了。");
		document.bookzx.Comments.focus();
		return false;
	}
	return true;
}