// JavaScript Document
function checkreg(){
	if(document.getElementById("reg_username").value=="")
	{
	alert("请输入用户名！");
	document.getElementById("reg_username").focus();
	return false;
	}
	if(document.getElementById("password").value=="")
	{
	alert("请输入密码！");
	document.getElementById("password").focus();
	return false;
	}
	if(document.getElementById("repassword").value!=document.getElementById("password").value)
	{
	alert("两次输入的密码不同，请重新输入！");
	document.getElementById("password").focus();
	return false;
	}
	if(document.getElementById("receiver").value=="")
	{
	alert("请输入联系人！");
	document.getElementById("receiver").focus();
	return false;
	}
	if(document.getElementById("companyname").value=="")
	{
	alert("请输入您的公司名称！");
	document.getElementById("companyname").focus();
	return false;
	}
	if(document.getElementById("email").value=="")
	{
	alert("请输入您的邮箱地址！");
	document.getElementById("email").focus();
	return false;
	}
	if(document.getElementById("email").value.indexOf("@")<0 || document.getElementById("email").value.indexOf(".")<3)
	{
	alert("邮箱地址格式错误，请重新输入！");
	document.getElementById("email").focus();
	return false;
	}
	if(document.getElementById("phone").value=="")
	{
	alert("请输入您的联系电话！");
	document.getElementById("phone").focus();
	return false;
	}
	if(document.getElementById("code").value=="")
	{
	alert("请输入验证码！");
	document.getElementById("code").focus();
	return false;
	}
	return true;
}


function checklog(){
	if(document.getElementById("username").value=="")
	{
	alert("请输入用户名!");
	document.getElementById("username").focus();
	return false;
	}
	if(document.getElementById("password").value=="")
	{
	alert("请输入密码!");
	document.getElementById("password").focus();
	return false;
	}
	return true;
}

function checksearch(){
	if(document.getElementById("keywords").value=="")
	{
	alert("请输入要搜索的关键词!");
	document.getElementById("keywords").focus();
	return false;
	}
}