Do WebForm notes leap year date

1. Show Details

If the male and female display problem cannot display true false time converted into Chinese national display Chinese characters cannot display code directly
2. Duplicate User name Verification

Query validation from the database
4. Date Judgment

Judging the year is a problem.

 varYear = document.getElementById ("Dr_year"); varMon = document.getElementById ("Dr_month"); varDay = document.getElementById ("Dr_day"); document.getElementById ("Dr_year"). onchange =function () {                if(Mon.value = = "2")        {            if( This. value% 4 = = 0) {Day.options.length= 0;  for(vari = 1; I < 30; i++)                {                    varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;                Day.appendchild (OP); }            }            Else{day.options.length= 0;  for(vari = 1; I < 29; i++) {                    varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;                Day.appendchild (OP); } }}} document.getElementById ("Dr_month"). onchange =function () {                if( This. Value = = "2") {            if(year.value% 4 = = 0) {Day.options.length= 0;  for(vari = 1; I < 30; i++) {                    varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;                Day.appendchild (OP); }            }            Else{day.options.length= 0;  for(vari = 1; I < 29; i++) {                    varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;                Day.appendchild (OP); }            }        }        Else if( This. Value = = "1" | | This. Value = = "3" | | This. Value = = "5" | | This. Value = = "7" | | This. Value = = "8" | | This. Value = = "10" | | This. Value = = "12") {Day.options.length= 0;  for(vari = 1; I < 32; i++) {                varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;            Day.appendchild (OP); }        } Else{day.options.length= 0;  for(vari = 1; I < 31; i++) {                varOP = document.createelement ("option")); Op.value=i; Op.innerhtml=i;            Day.appendchild (OP); }        }    }

5, the modification page cannot submit

6, when editing, if the password is not filled, then retain the original password

Generally is a single change in the password unified change in the method of adding a judgment

Execute statement do not change password if password is blank

Password not empty in modify

Use JS to determine if the password is consistent

varP1 = document.getElementById ("TextBox2"); varP2 = document.getElementById ("TextBox3"); P1.onkeyup=function() {Pwdisok (P1, p2);} P2.onkeyup=function() {Pwdisok (P1, p2);} functionPwdisok (PWD1, pwd2) {if(Pwd1.value! =pwd2.value) {document.getElementById ("Pwd_error"). InnerText = "two times password inconsistent!" "; document.getElementById ("Pwd_error"). Style.color = "Red"; Pwdok=false; }        Else{document.getElementById ("Pwd_error"). InnerText = "Correct!" "; document.getElementById ("Pwd_error"). Style.color = "Green"; Pwdok=true; }    }

Do WebForm notes leap year date