var profile_username_toolong = '对不起，您的用户名超过 20 个字符，请输入一个较短的用户名。';
		var profile_username_tooshort = '对不起，您输入的用户名小于3个字符, 请输入一个较长的用户名。';
		var profile_username_pass = "可用";

		function checkusernames(username)
		{
		
			var unlen = username.replace(/[^\x00-\xff]/g, "**").length;

			if(unlen < 3 || unlen > 20) {
				document.getElementById("checkresult").innerHTML = "<font color='#009900'>" + (unlen < 3 ? profile_username_tooshort : profile_username_toolong) + "</font>";
				return;
			}
			checkusername.checkname(username,backfun)
		}

		function backfun(result)
		{
			if (result == "1")
			{
				document.getElementById("checkresult").innerHTML = "<font color='#009900'>对不起，您输入的此用户名已经被他人使用，请选择其他名字后再试。</font>";
			}
			else
			{
				document.getElementById("checkresult").innerHTML = profile_username_pass;
			}
		}