function checkReg(){
	 if(document.getElementById("checkcodes").value==""){
	        alert("请输入验证码!");
	        return false;
	 }else if(document.getElementById("username").value=="" || document.getElementById("username").value.length < 4)
	 {
	        alert("请输入帐号,长度在4到15个字符之间!");
	        return false;
	 }else if(document.getElementById("othername").value=="" || document.getElementById("othername").value.length > 4)
	 {
	        alert("请输入昵称最多4个汉字即8个字节!");
	        return false;
	 }else if(document.getElementById("password").value=="" || document.getElementById("password").value.length < 6)
	 {
	        alert("请输入6位数密码!");
	        return false;
	 }else if(document.getElementById("repassword").value=="")
	 {
	        alert("请输入6位数确认密码!");
	        return false;
	 }else if (document.getElementById("email").value=="" || document.getElementById("email").value.charAt(0)=="." ||        
		        document.getElementById("email").value.charAt(0)=="@"||       
		        document.getElementById("email").value.indexOf('@', 0) == -1 || 
		        document.getElementById("email").value.indexOf('.', 0) == -1 || 
		        document.getElementById("email").value.lastIndexOf("@")==document.getElementById("email").value.length-1 || 
		        document.getElementById("email").value.lastIndexOf(".")==document.getElementById("email").value.length-1 ||
		        document.getElementById("email").value.lastIndexOf(".")<=document.getElementById("email").value.lastIndexOf("@")+1
		        )
		     {
		      alert("请输入正确的email地址!");
		      return false;
	 }else if(document.getElementById("tel").value=="" || isNaN(document.getElementById("tel").value))
	 {
	        alert("请输入正确的电话号码!");
	        return false;
	 }else if(document.getElementById("password").value!=document.getElementById("repassword").value)
	 {
	        alert("输入的密码与确认密码不一致!");
	        return false;
	 }
}

function checkNews(){

	var title = document.getElementById("title").value;
	var newsfrom = document.getElementById("newsfrom").value;
	var proj1 = document.getElementById("proj1").value;
	var smp_tit = document.getElementById("smp_tit").value;
	
	if(title == ""){
		alert("文章标题输入不能为空!");
		return false;
	}
	if(smp_tit == ""){
		alert("文章简标题输入不能为空!");
		return false;
	}
	if(newsfrom == ""){
		alert("文章来源输入不能为空!");
		return false;
	}
	if(proj1 == ""){
		alert("请选择文章所属频道!");
		return false;
	}
	
}

function checkfile(){

	var title = document.getElementById("title").value;
	var newsfrom = document.getElementById("newsfrom").value;
	var proj1 = document.getElementById("proj1").value;
	var smp_tit = document.getElementById("smp_tit").value;
	var uploadfile = document.getElementById("uploadfile").value;
	if(title == ""){
		alert("文章标题输入不能为空!");
		return false;
	}
	if(smp_tit == ""){
		alert("文章简标题输入不能为空!");
		return false;
	}
	if(uploadfile == ""){
		alert("请为上传的图片命名!");
		return false;
	}
	if(newsfrom == ""){
		alert("文章来源输入不能为空!");
		return false;
	}
	if(proj1 != ""){
		if(document.getElementById("proj2").value != ""){
			if(document.getElementById("structureid").value == ""){
				alert("请选择文章所属板块!");
				return false;
			}
		}else{
			alert("请选择文章所属类别!");
			return false;
		}
	}else{
		alert("请选择文章所属频道!");
		return false;
	}
	
}
function checkother(){

	var title = document.getElementById("title").value;
	var newsfrom = document.getElementById("newsfrom").value;
	var proj1 = document.getElementById("proj1").value;
	var smp_tit = document.getElementById("smp_tit").value;
	var htmlurl = document.getElementById("htmlurl").value;
	if(title == ""){
		alert("文章标题输入不能为空!");
		return false;
	}
	if(smp_tit == ""){
		alert("文章简标题输入不能为空!");
		return false;
	}
	if(htmlurl == ""){
	    alert("请输入文章链接地址!");
		return false;
	}else{
		var regexp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/ 
        if(!regexp.test(htmlurl)){
        	alert("请输入正确的文章链接地址！");
        	return false;
        }
	}
	if(newsfrom == ""){
		alert("文章来源输入不能为空!");
		return false;
	}
	if(proj1 != ""){
		if(document.getElementById("proj2").value != ""){
			if(document.getElementById("structureid").value == ""){
				alert("请选择文章所属板块!");
				return false;
			}
		}else{
			alert("请选择文章所属类别!");
			return false;
		}
	}else{
		alert("请选择文章所属频道!");
		return false;
	}
	
}

function checkitem(){

	var proj1 = document.getElementById("proj1").value;
	var structure = document.getElementById("structure").value;
	if(proj1 == ""){
		alert("请选择文章所属频道!");
		return false;
	}
	
}


function checkUser(){
    var username = document.getElementById("username").value;
    var password = document.getElementById("password").value;
    var checkcodes = document.getElementById("checkcodes").value;
    if(username == ""){
		alert("请填写正确的用户名！");
		return false;
	}else if(password == ""){
		alert("请填写密码！");
		return false;
	}else if(checkcodes == ""){
		alert("请填写验证码！");
		return false;
	}
}


function checkupload(){
	if(document.getElementById("file").value == ""){
		alert("请添加要导入的文件！");
		return false;
	}else if(document.getElementById("type").value == ""){
		alert("请选择导入方式！");
		return false;
	}
}




function checksign(){
	 if(document.getElementById("checkcodes").value==""){
	        alert("请输入验证码!");
	        return false;
	 }else if(document.getElementById("stuname").value=="")
	 {
	        alert("请输入您的真实姓名!");
	        return false;
	 }else if(document.getElementById("stusex").value=="")
	 {
	        alert("请选择您的性别!");
	        return false;
	 }else if(document.getElementById("stubirth1").value=="")
	 {
	        alert("请选择出生年月!");
	        return false;
	 }else if(document.getElementById("stubirth2").value=="")
	 {
	        alert("请选择出生年月!");
	        return false;
	 }else if (document.getElementById("stumail").value=="" || document.getElementById("stumail").value.charAt(0)=="." ||        
		        document.getElementById("stumail").value.charAt(0)=="@"||       
		        document.getElementById("stumail").value.indexOf('@', 0) == -1 || 
		        document.getElementById("stumail").value.indexOf('.', 0) == -1 || 
		        document.getElementById("stumail").value.lastIndexOf("@")==document.getElementById("stumail").value.length-1 || 
		        document.getElementById("stumail").value.lastIndexOf(".")==document.getElementById("stumail").value.length-1 ||
		        document.getElementById("stumail").value.lastIndexOf(".")<=document.getElementById("stumail").value.lastIndexOf("@")+1
		        )
		     {
		      alert("请输入正确的Email地址!");
		      return false;
	 }else if(document.getElementById("stutel").value=="" || isNaN(document.getElementById("stutel").value))
	 {
	        alert("请输入正确的电话号码!");
	        return false;
	 }else if(document.getElementById("stuaddress").value=="")
	 {
	        alert("请输入您的通讯地址!");
	        return false;
	 }else if(document.getElementById("traintype").value=="")
	 {
	        alert("请选择课程!");
	        return false;
	 }else if(document.getElementById("studytype").value=="")
	 {
	        alert("请选择授课方式!");
	        return false;
	 }
}


function usercheckpwd(){
	if(document.getElementById("password").value=="" || document.getElementById("password").value.length < 6)
	 {
	        alert("请输入6位数密码!");
	        return false;
	 }else if(document.getElementById("repassword").value=="")
	 {
	        alert("请输入6位数确认密码!");
	        return false;
	 }else if(document.getElementById("password").value!=document.getElementById("repassword").value)
	 {
	        alert("输入的密码与确认密码不一致!");
	        return false;
	 }
}

function userchecktype(){
	if(document.getElementById("type").value==0)
	 {
	        alert("请选择一个级别!");
	        return false;
	 }
}



function usercheckinfo(){
	if(document.getElementById("othername").value=="" || document.getElementById("othername").value.length > 4)
	 {
	        alert("请输入昵称最多4个汉字即8个字节!");
	        return false;
	 }else if (document.getElementById("email").value=="" || document.getElementById("email").value.charAt(0)=="." ||        
		        document.getElementById("email").value.charAt(0)=="@"||       
		        document.getElementById("email").value.indexOf('@', 0) == -1 || 
		        document.getElementById("email").value.indexOf('.', 0) == -1 || 
		        document.getElementById("email").value.lastIndexOf("@")==document.getElementById("email").value.length-1 || 
		        document.getElementById("email").value.lastIndexOf(".")==document.getElementById("email").value.length-1 ||
		        document.getElementById("email").value.lastIndexOf(".")<=document.getElementById("email").value.lastIndexOf("@")+1
		        )
		     {
		      alert("请输入正确的email地址!");
		      return false;
	 }else if(document.getElementById("tel").value=="" || isNaN(document.getElementById("tel").value))
	 {
	        alert("请输入正确的电话号码!");
	        return false;
	 }
}


function checkad(){
	if(document.getElementById("aname").value=="" || document.getElementById("aname").value.length<=0){
		alert("请输入正确的广告名称!");
	    return false;
	}
	if(document.getElementById("adtype").value=="" || document.getElementById("adtype").value.length<=0){
		alert("请输选择要发布的广告类型（广告文件尺寸比例）!");
	    return false;
	}
	if(document.getElementById("htmlurl").value=="" || document.getElementById("htmlurl").value.length<=0){
		alert("请输入正确广告链接地址!");
	    return false;
	}
	if(document.getElementById("uploadfile").value=="" || document.getElementById("uploadfile").value.length<=0){
		alert("请您添加广告文件!");
	    return false;
	}
}




function checkadpage(){
	if(document.getElementById("pagename").value=="" || document.getElementById("pagename").value.length<=0){
		alert("请输入正确的页面名称!");
	    return false;
	}
	if(document.getElementById("adtype").value=="" || document.getElementById("adtype").value.length<=0){
		alert("请输选择要发布的广告类型（广告文件尺寸比例）!");
	    return false;
	}
	if(document.getElementById("pageurl").value=="" || document.getElementById("pageurl").value.length<=0){
		alert("请输入正确的页面链接地址!");
	    return false;
	}
	if(document.getElementById("pageid").value=="0" || document.getElementById("pageid").value.length<=0){
		alert("请输入该页面所含的广告数量!");
	    return false;
	}
}