function GetDifficultDescript(strDiff){
	switch(strDiff)
	{
		case "Diff:1":
			strDiff="一年级";
			break;
		case "Diff:2":
			strDiff="二年级";
			break;
		case "Diff:3":
			strDiff="三年级";
			break;
		case "Diff:4":
			strDiff="四年级";
			break;
		case "Diff:5":
			strDiff="五年级";
			break;
		case "Diff:6":
			strDiff="六年级";
			break;
		case "Diff:7":
			strDiff="初一";
			break;
		case "Diff:8":
			strDiff="初二";
			break;
		case "Diff:9":
			strDiff="初三";
			break;
		case "Diff:10":
			strDiff="高一";
			break;
		case "Diff:11":
			strDiff="高二";
			break;
		case "Diff:12":
			strDiff="高三";
			break;
		case "Diff:13":
			strDiff="大一";
			break;
		case "Diff:14":
			strDiff="大二";
			break;
		case "Diff:15":
			strDiff="大三";
			break;
		case "Diff:16":
			strDiff="大四";
			break;
	}
	return strDiff;
}

function ShowDiff(strDiff)
{
    document.write(GetDifficultDescript(strDiff));
}