function CheckForm()
{
if (document.form2.enter_service_kw.value.length==0 || document.form2.enter_service_kw.value=="企业名称或产品服务关键词")
	{
		alert("请输入企业名称或产品服务关键词！");
		document.form2.enter_service_kw.focus();
		return false;
	}
	return true;
}
function check()
{
	if ((userform.username.value=="")||(userform.password.value==""))
	{
		alert("请先输入用户名/密码！");
		return false;
	}
	else
		return true;
}