var isValidateUserName = true;
var txt_nickName = "";
ValidateNickName = function()
{
	if($("nickName").value.trim().toLen()>12)
	{
		$("nameText").innerHTML = "昵称名字太长";
		isValidateUserName = false;
	}else if($("nickName").value.trim().toLen()==0)
	{
		$("nameText").innerHTML = "昵称不能为空";
		isValidateUserName = false;
	}else
	{
		if($("nickName").value!=txt_nickName)
		{
			book_Detail.myAjax.CheckUserNickName($("nickName").value.trim(),CheckUserName_Callback);
			$("nameText").innerHTML = "正在检测该昵称...";
		}
		else
		{
		$("nameText").innerHTML = "";			
		}
	}	
}

CheckUserName_Callback = function(rex)
{
	if(rex.value)
	{
		$("nameText").innerHTML = "您要注册的昵称已经被注册!";
		isValidateUserName = false;
	}
	else
	{
		$("nameText").innerHTML = "该昵称可以注册";
		isValidateUserName = true; 		
	}
}

window.onload = function()
{
	txt_nickName = $("nickName").value;
	if(isIE)
	{
		$("btnGo").focus();
		document.body.onkeydown = function(){if(event.keyCode==13){return Validate();}}
	}
}