function login(user,password)
{
	if(user == null || user == ""){
		alert("用户名没有输入");
		return ;
	}
	if(password == null || password == ""){
		alert("密码没有输入");
		return ;
	}
	logonin_form.UserName.value=escape(logonin_form.UserNames.value);
	logonin_form.submit();
	logonin_form.UserName.value="";
	logonin_form.UserNames.value="用户名|昵称";
	logonin_form.PassWord.value="";
}				
function clickinput(n) 
{
	var userName = document.getElementById("UserNames")
	if (n == 0 && userName.value == "用户名|昵称"){userName.value="";}
	if (n == 1 && userName.value == ""){userName.value = "用户名|昵称";}
}
function Enter()
{
	if(event.keyCode==13)
	{
		
		login(document.logonin_form.UserNames.value,document.logonin_form.PassWord.value);
		clickinput(1);	
	}
}