JS验证

 //检查身份证号码和生日是否相同
    function checkCardNo()
    {
        var blog  = false;
        var brithday  = $('ctl00_HomeMasterContentPlaceHolder_txtBrithday').value;
       
        var card  = $('cardNoberPropt');
       
        var type  = $('ctl00_HomeMasterContentPlaceHolder_ddlCardType').value;
        var nober = $('ctl00_HomeMasterContentPlaceHolder_CardNober').value;
        brithday = brithday.substring(0,4)+brithday.substring(5,7)+brithday.substring(8,10);
      
        //类型为0则是身份证
        if(type=='0')
        {
            var propt = IsCard(nober);
            if(propt=='验证通过')
            {
           
                if(nober.length == 15 || nober.length == 18)
                {
                  
                    switch(nober.length)
                    {
                        case 15:
                        {
                            if(nober.substring(6,12) == brithday)
                            {
                                blog = true;
                            }
                            else
                            {
                                card.innerHTML="证件号码和出生日期不匹配！";
                                alert('证件号码和出生日期不匹配！');
                                blog =  false;
                            }
                            break;
                        }             
                        case 18:
                        {
                            if(nober.substring(6,14) == brithday)
                            {
                                blog =  true;
                            }
                            else
                            {
                                alert('证件号码和出生日期不相同！');
                                card.innerHTML="证件号码和出生日期不相同！";
                                blog =  false;
                            }
                            break;                   
                        }
                    }
                }
                else
                {
                    card.innerHTML="证件号码不合法！";
                    blog =  false;
                    alert('证件号码不合法！');
                    //return false;
                }
            }
            else
            {
                blog =  false;
                card.innerHTML=propt;
                //return false;
            }
        }
        if(blog)    
        {
            document.getElementById("cardNoberPropt").style.display = "none";
        }

    }
    //检查用户名中是否含有中文字符
    function checkchinese(str)
    { 
        var re1 = new RegExp("^[\u4E00-\uFA29]*$")       //汉字的范围
        var re2 = new RegExp("^[\uE7C7-\uE7F3]*$")
        var str = str.replace(/(^\s*)|(\s*$)/g,'');
        if (str == ''){return false;}
        if (!(re1.test(str) && (! re2.test(str))))
        {
            return false;
        }
        return true;
    }

    //检查用户名中是否含有特殊字符
    function replace(obj)
    {
        var str=obj.value;
        var SPECIAL_STR = "~!@%^&*();'\"?><[]{}\\|,:/=+—“”‘";
        for(i=0;i<str.length;i++)
        if (SPECIAL_STR.indexOf(str.charAt(i)) !=-1)
        {
            $('usernamePropt').innerHTML = "不能以含有非法字符("+str.charAt(i)+")！";
            obj.focus();
            return false;
        }
        else
        {  
            var reg = /^[\u4e00-\u9fa5]+$/i;
            if (reg.test(str))
            {
                $('usernamePropt').innerHTML = "不能为汉字！";
                obj.focus();
                return false;
            }
            else
            {
                for(var i=0; i<str.length;i++)
                { 
                    if(reg.test(str.charAt(i)))
                    {
                       
                        $('usernamePropt').innerHTML = "不能为汉字！";
                        obj.focus();
                        return false;
                    }
                }
                return true;
            }
            return true;
        }
    }