function checkloginform()
	{
		//return false;
		var rp=/^[a-zA-Z][a-zA-Z0-9_]{2,19}$/ //用户名检测的正则表达式
		var rpsw=/^[a-zA-Z0-9]{4,20}$/ //密码检测的正则表达式

		var UserId=loginform.UserId.value;
		//根据正则表达式判定用户名是否正确
		//if (!rp.test(UserId))
		//{
		//	alert("请输入正确的用户名！");
		//	loginform.UserId.focus();
		//	loginform.UserId.select();
		//	return false;
		//}
		
		//判定用户名长度
		if(UserId.length<3)
		{
			alert("用户名不能少于3位！");
			loginform.UserId.focus();			
			return false;
		}
		
		//判定密码长度
		if(loginform.Password.value.length<4)
		{
			alert("密码不能少于4位！");
			loginform.Password.focus();			
			return false;
		}
		
		//根据正则表达式判定密码输入是否正确
		if (!rpsw.test(loginform.Password.value.trim()))
		{
			alert("请输入正确的密码！");
			loginform.Password.focus();
			loginform.Password.select();
			return false;
		}
		
		//判定验证码是否输入
		if(loginform.VerifyNum.value.length<4)
		{
			alert("请输入验证码！");
			loginform.VerifyNum.focus();			
			return false;
		}
		
	}


var onecountCourse; 
onecountCourse=0; 
subcatCourse = new Array(); 
//把所有下载小类的信息读到本地
subcatCourse[0] = new Array("口语听力","40","49"); 
subcatCourse[1] = new Array("商务英语","40","51"); 
subcatCourse[2] = new Array("雅思","40","53"); 
subcatCourse[3] = new Array("少儿英语","40","59"); 
subcatCourse[4] = new Array("网页设计","41","63"); 
subcatCourse[5] = new Array("CISCO认证","41","73"); 
subcatCourse[6] = new Array("英语","43","74"); 
subcatCourse[7] = new Array("数学","43","75"); 
subcatCourse[8] = new Array("政治","43","76"); 
subcatCourse[9] = new Array("报关员","42","82"); 
subcatCourse[10] = new Array("物流","42","84"); 
subcatCourse[11] = new Array("ISO审核员","42","85"); 
subcatCourse[12] = new Array("其他","42","86"); 
subcatCourse[13] = new Array("人力资源","42","94"); 
subcatCourse[14] = new Array("律师资格","42","96"); 
subcatCourse[15] = new Array("等级考","41","102"); 
subcatCourse[16] = new Array("舞蹈与形体","57","103"); 
subcatCourse[17] = new Array("汽车驾驶","58","105"); 
subcatCourse[18] = new Array("汽车维修","58","106"); 
subcatCourse[19] = new Array("服装裁剪","58","107"); 
subcatCourse[20] = new Array("厨师","58","108"); 
subcatCourse[21] = new Array("美容美发","58","109"); 
subcatCourse[22] = new Array("装饰设计","58","110"); 
subcatCourse[23] = new Array("电子维修","58","111"); 
subcatCourse[24] = new Array("其他","58","112"); 
subcatCourse[25] = new Array("注册会计师","59","113"); 
subcatCourse[26] = new Array("会计职称","59","114"); 
subcatCourse[27] = new Array("ACCA","59","115"); 
subcatCourse[28] = new Array("LCCI会计证书","59","116"); 
subcatCourse[29] = new Array("金融/会计英语","59","117"); 
subcatCourse[30] = new Array("金融贸易","59","118"); 
subcatCourse[31] = new Array("音乐","57","122"); 
subcatCourse[32] = new Array("书法","57","123"); 
subcatCourse[33] = new Array("美术与摄影","57","124"); 
subcatCourse[34] = new Array("武术/拳击","57","131"); 
subcatCourse[35] = new Array("棋牌类","57","132"); 
subcatCourse[36] = new Array("其他","57","133"); 
subcatCourse[37] = new Array("托福/GRE/GMAT","40","135"); 
subcatCourse[38] = new Array("日语","40","136"); 
subcatCourse[39] = new Array("英语四六级","40","137"); 
subcatCourse[40] = new Array("综合英语","40","138"); 
subcatCourse[41] = new Array("PETS","40","139"); 
subcatCourse[42] = new Array("新概念英语","40","143"); 
subcatCourse[43] = new Array("小语种","40","144"); 
subcatCourse[44] = new Array("网络技术","41","145"); 
subcatCourse[45] = new Array("基础培训","41","146"); 
subcatCourse[46] = new Array("数据库","41","147"); 
subcatCourse[47] = new Array("微软认证","41","148"); 
subcatCourse[48] = new Array("平面设计","41","149"); 
subcatCourse[49] = new Array("程序设计","41","150"); 
subcatCourse[50] = new Array("辅助设计","41","152"); 
subcatCourse[51] = new Array("MBA","46","153"); 
subcatCourse[52] = new Array("项目管理","46","156"); 
subcatCourse[53] = new Array("WTO","46","158"); 
subcatCourse[54] = new Array("成人高考","60","160"); 
subcatCourse[55] = new Array("全日制自考","60","161"); 
subcatCourse[56] = new Array("高复班","60","162"); 
subcatCourse[57] = new Array("网络学院","60","163"); 
subcatCourse[58] = new Array("夜大学","60","164"); 
subcatCourse[59] = new Array("文秘","42","168"); 
subcatCourse[60] = new Array("导游","42","169"); 
subcatCourse[61] = new Array("会计上岗证","59","170"); 
subcatCourse[62] = new Array("电子商务","46","171"); 
subcatCourse[63] = new Array("其他","41","175"); 
subcatCourse[64] = new Array("会计电算化","59","177"); 
subcatCourse[65] = new Array("球类","57","179"); 
subcatCourse[66] = new Array("花艺/茶艺/陶艺","57","186"); 
subcatCourse[67] = new Array("司法考试","42","187"); 
subcatCourse[68] = new Array("公务员","42","188"); 
subcatCourse[69] = new Array("游泳","57","189"); 
subcatCourse[70] = new Array("MBA备考","43","190"); 
subcatCourse[71] = new Array("健身健美","57","191"); 
subcatCourse[72] = new Array("中高级口译","40","227"); 
subcatCourse[73] = new Array("SUN认证","41","229"); 
subcatCourse[74] = new Array("LINUX认证","41","230"); 
subcatCourse[75] = new Array("ORACLE认证","41","231"); 
subcatCourse[76] = new Array("EMBA","46","232"); 
subcatCourse[77] = new Array("DBA/MPA","46","233"); 
subcatCourse[78] = new Array("其他类专业课","43","239"); 
subcatCourse[79] = new Array("业余制自考","60","244"); 
subcatCourse[80] = new Array("中小学综合素质","71","247"); 
subcatCourse[81] = new Array("日语J.TEST考试","40","249"); 
subcatCourse[82] = new Array("教师","72","263"); 
subcatCourse[83] = new Array("学生","72","264"); 
subcatCourse[84] = new Array("家长","72","265"); 
subcatCourse[85] = new Array("专业硕士","43","267"); 
subcatCourse[86] = new Array("软件测试","41","268"); 
subcatCourse[87] = new Array("高考","60","269"); 
subcatCourse[88] = new Array("考博","71","270"); 
subcatCourse[89] = new Array("在职硕士研究生","71","271"); 
subcatCourse[90] = new Array("少儿教育","72","276"); 
subcatCourse[91] = new Array("小学教育","72","277"); 
subcatCourse[92] = new Array("初中教育","72","278"); 
subcatCourse[93] = new Array("高中教育","72","279"); 
onecountCourse=94;           
//结束
function changelocationCourse(locationid) 
    { 
    document.CourseForm.CourseType2Id.length = 1;        //在任何情况下，小类下拉框默认显示“请选择小类...”

    var locationid=locationid; 
    var i; 
    for (i=0;i < onecountCourse; i++) 
	{ 
		if (subcatCourse[i][1] == locationid) { 
		document.CourseForm.CourseType2Id.options[document.CourseForm.CourseType2Id.length] = new Option(subcatCourse[i][0], subcatCourse[i][2]); 
		} 
	} 
} 
function init_CourseType2(CourseType1Id,CourseType2Id)
{
	
	if (CourseType1Id.trim()!=""&&CourseType2Id.trim()!="")
	{
		var i; 
		document.CourseForm.CourseType2Id.length = 1;
		for (i=0;i < onecountCourse; i++) 
		{ 
			if (subcatCourse[i][1] == CourseType1Id) 
			{ 
				document.CourseForm.CourseType2Id.options[document.CourseForm.CourseType2Id.length] = new Option(subcatCourse[i][0], subcatCourse[i][2]); 
				if (subcatCourse[i][2].trim()==CourseType2Id.trim()) 
				{	
					document.CourseForm.CourseType2Id.options[document.CourseForm.CourseType2Id.length-1].selected=true;
				}
			} 
		} 
	}
}

	function checkcourseform()
	{
		if (document.CourseForm.CourseName.value == "课程名称")
		{
			document.CourseForm.CourseName.value="";
		}
	}

	function clearBox(v){
	if(v.value == '') v.value="课程名称";
	}

	function a()
	{
	document.getElementById("bbb").style.display="block";
	document.getElementById("aaa").style.display="none";
	}
	function b()
	{
	document.getElementById("aaa").style.display="block";
	document.getElementById("bbb").style.display="none";
	}
	function c()
	{
	document.getElementById("ddd").style.display="block";
	document.getElementById("ccc").style.display="none";
	document.getElementById("eee").style.display="none";
	}
	function d()
	{
	document.getElementById("ccc").style.display="block";
	document.getElementById("ddd").style.display="none";
	document.getElementById("eee").style.display="none";
	}
	function e()
	{
	document.getElementById("eee").style.display="block";
	document.getElementById("ccc").style.display="none";
	document.getElementById("ddd").style.display="none";
	}

function Changeddvip(id){
	for (i=1;i<=6;i++){
		eval("document.getElementById('cb"+i+"').className='ddvipcom"+i+"'")
	}
		eval("document.getElementById('cb"+id+"').className='ddvipnet"+id+"'")
        eval("document.getElementById('search').className='websearch"+id+"'")
	ddvip = eval('ddvip_' + id);
	if(ddvip == ''){
		alert('数据尚未下载完毕，请刷新页面再试！！');
	}else{
		document.getElementById('ddN').innerHTML = ddvip;
	}
}