//获取DOM对象function e(str){    return document.getElementById(str);}//动态添加有样式的内容//ok_prompt 为提示文字验证正确的className//error_prompt  为提示文字验证错误时className//import_prompt  为提示文字提示时classNamefunction appendHtml(obj,str,className){    obj.innerHTML = str;    obj.className = className;}//验证表单function checkForm(){//方法1：	/*if(checkUserName()&checkPwd()&checkRepwd()&checkNickName()&checkTel()&checkEmail()){		return true;		}else{		return false;	}*///方法2：	 var ids  = ["checkUserName()","checkPwd()","checkRepwd()","checkNickName()","checkTel()","checkEmail()"];    var sum = 0;    for(var i = 0; i
    2、只能以数字、字母开头或结尾，且长度为4-18function checkUserName(){	var userName = e("userName");	var reg=/^[a-zA-Z0-9][a-zA-Z0-9\-\._]{2,16}[a-zA-Z0-9]$/;	if(userName.value==""){		appendHtml(e("userNameId"),"用户名不能为空！","error_prompt");				//在文本域中设置焦点		userName.focus();				return false;			}else if(userName.value.match(reg)==null){		appendHtml(e("userNameId"),"请输入正确的通行证用户名！","error_prompt");				//选取文本域中的内容：		userName.select();				return false;			}else{		appendHtml(e("userNameId"),"输入正确!","ok_prompt");		return true;	}  }//验证密码function checkPwd(){   var pwd= e("pwd");	if(pwd.value==""){		appendHtml(e("pwdId"),"登录密码不能为空！","error_prompt");		return false;	}else if(pwd.value.length<6||pwd.value.length>16){		appendHtml(e("pwdId"),"密码长度必须为6到16字符！","error_prompt");		return false;	}else{		appendHtml(e("pwdId"),"输入正确！","ok_prompt");		return true;	}   }//验证重复密码function checkRepwd(){	var pwd=e("pwd");	var repwd=e("repwd");	var repwdId=e("repwdId");	if(repwd.value!==pwd.value){		appendHtml(repwdId,"两次输入的密码不一致！","error_prompt");		return false	}else if(repwd.value==""){		appendHtml(repwdId,"确认密码不能为空！","error_prompt");		return false;	}else{		return true;	}}//验证昵称function checkNickName(){	var nickName=e("nickName");		var nickNameId=e("nickNameId");	var reg=/^([\u4e00-\u9fa5]|\w|[!@#$%*])+$/;	var len=nickName.value.replace(/[\u4e00-\u9fa5]/g,"ab").length;	if(nickName.value==""){		appendHtml(nickNameId,"昵称不能为空！","error_prompt");			return false;	}else if(nickName.value.match(reg)==null){	//如果js中match函数方法没有找到匹配，返回 null。如果找到匹配返回一个数组并且更新全局 RegExp 对象的属性以反映匹配结果。		appendHtml(nickNameId,"只能由汉字、字母、数字、下划线以及@!#$%&*特殊字符组成！","error_prompt");			return false;	}else if(len<4||len>16){		appendHtml(nickNameId,"昵称为4-16个字符","error_prompt");		return false;	}else{		appendHtml(nickNameId,"输入正确！","ok_prompt");		return true;	}	}//验证手机function checkTel(){	var odom=e("tel");	var omsg=e("telId");	var reg=/^(13|15|18)\d{9}$/;	if(odom.value==""){		appendHtml(omsg,"关联手机号不能为空！","error_prompt");			return false;	}else if(odom.value.match(reg)==null){		appendHtml(omsg,"关联手机号码输入不正确，请重新输入！","error_prompt");			return false;	}else{		appendHtml(omsg,"输入正确","ok_prompt");			return true;	}}//验证邮箱function checkEmail(){     var odom=e("email");	 var omsg=e("emailId");	 var reg=/^\w+@\w+(\.[a-zA-Z]{2,3}){1,2}$/	 if(odom.value==""){		appendHtml(omsg,"保密邮箱不能为空！","error_prompt");			return false;	}else if(odom.value.match(reg)==null){		appendHtml(omsg,"保密邮箱格式不正确，请重新输入！","error_prompt");			return false;	}else{		appendHtml(omsg,"输入正确","ok_prompt");			return true;	}}