// JavaScript Document
function openRit(){
	var user=document.getElementById("userName").value;
	if(user=="姓名"){
		document.getElementById("userName").value="";
	}else{}
	
}
function closeRit(){
	var name=document.getElementById("userName").value;
	if(name==""){
		document.getElementById("userName").value="姓名";
	}
	else{
		
	}
}
function openEmail(){
	var user=document.getElementById("email").value;
	if(user=="电话"){
		document.getElementById("email").value="";
	}else{}
}
function closeEmail(){
	var name=document.getElementById("email").value;
	if(name==""){
		document.getElementById("email").value="电话";
	}
	else{
	}
}
function openContent(){
	var user=document.getElementById("id_neirong").value;
	if(user=="在这留下您的基本需求"){
		document.getElementById("id_neirong").value="";
	}else{}
}
function closeContent(){
	var name=document.getElementById("id_neirong").value;
	if(name==""){
		document.getElementById("id_neirong").value="在这留下您的基本需求";
	}
	else{
	}
}
function openContent2(){
	var user=document.getElementById("neirong").value;
	if(user=="在这留下您的基本需求"){
		document.getElementById("neirong").value="";
	}else{}
}
function closeContent2(){
	var name=document.getElementById("neirong").value;
	if(name==""){
		document.getElementById("neirong").value="在这留下您的基本需求";
	}
	else{
	}
}


/*菜单展开*/
function showList(str){
		
		document.getElementById("bbb").style.display="none";
		document.getElementById("bbb").style.height=0+"px";	
		var zong=document.getElementById("aaa").style.display="";
		zhikai(str);
		
	}
	function zhikai(str){
		var chang=document.getElementById("aaa").style.height;
		var jieqi=(chang.slice(0,-2));
		var num=Number(jieqi);
		if(num<str){
			num=num+3;
			document.getElementById("aaa").style.height=num+"px";
			window.setTimeout("zhikai("+str+")",1);
		}else{
			
		}
	}
	
	
	
	function showList2(str){
		document.getElementById("aaa").style.display="none";
		document.getElementById("aaa").style.height=0+"px";
		
		var zong=document.getElementById("bbb").style.display="";
		var liang=document.getElementById("bbb").style.width;
		var liang2=document.getElementById("bbb").style.height;		
		zhikai2(str);
		
		
	}
	function zhikai2(str){
		var chang=document.getElementById("bbb").style.height;
		var jieqi=(chang.slice(0,-2));
		var num=Number(jieqi);
		
		if(num<str){
			num=num+3;
			document.getElementById("bbb").style.height=num+"px";
			window.setTimeout("zhikai2("+str+")",1);
		}else{
			
		}
	}
	/*菜单关闭*/
	function closeList(){
		var bb=document.getElementById("bbb").style.height;
		var jiebb=(bb.slice(0,-2));
		var num=Number(jiebb);
		if(num==80){
		hezhu();
		
		}
		
	}
	function hezhu(){
		var gao=document.getElementById("bbb").style.height;
		var jiegao=(gao.slice(0,-2));
		var gaoNum=Number(jiegao);
		
		if(gaoNum>=0){
			gaoNum=gaoNum-10;
			document.getElementById("bbb").style.height=gaoNum+"px";
			window.setTimeout("hezhu()",20);
		}else{
			
		}
	}
/*按钮背景 trade*/
function botton(){
	document.getElementById("trade").style.backgroundColor="#000";
}
function bottonOver(){
	document.getElementById("trade").style.backgroundColor="#1B1D18";
}
/*type*/
function botton(){
	document.getElementById("type").style.backgroundColor="#000";
}
function bottonOver(){
	document.getElementById("type").style.backgroundColor="#1B1D18";
}

/*检查邮箱*/

function yanzheng(){
	var name=document.getElementById("userName").value;
	var email=document.getElementById("email").value;
	if(name=="姓名"){
		
		window.alert("姓名不能为空!");
		document.form2.userName.focus();   
        return false;
		
	}else if(email=="电话"){
		window.alert("电话不能为空!");
		document.form2.email.focus();   
        return false;
	}else{ return true;}
}
/*检查是否为空*/
function contact(){
	var userName=document.getElementById("userName1").value;
	var userEmail=document.getElementById("userEmail").value;
	var companyName=document.getElementById("companyName").value;
	var Tel=document.getElementById("Tel").value;
	var message=document.getElementById("message").value;
	var regm2 =/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
	if(userName==""){	
		window.alert("姓名不能为空！");
		document.name1.userName1.focus();   
        return false;
	}else if(!userEmail.match(regm2)){
		window.alert("邮箱地址格式错误或含有非法字符!\n请检查!");
		document.name1.userEmail.focus();   
        return false;
	}else if(companyName==""){	
		window.alert("企业名称不能为空！");
		document.name1.companyName.focus();
        return false;
	}else if(Tel==""){	
		window.alert("电话不能为空！");
		document.name1.Tel.focus();   
        return false;
	}else if(message==""){	
		window.alert("留言内容不能为空！");
		document.name1.message.focus();   
        return false;
	}else{ return true;}
}
/*yun*/