Form Validation
This code validates the information entered into a form using javascript. It validates the name, location, date, and e-mail address.
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Código fuente
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="description" content="">
<meta name="GENERATOR" content="">
<meta name="keywords" content="">
<meta name="ProgId" content="">
<title> Registration</title>
<link rel="stylesheet" type="text/css" href="style.css">
<script>
window.focus()
function validateForm(){
var sFirstname = document.forms[0].first.value
var sLastname = document.forms[0].last.value
var badChar = "!@#$%^&*()-=+[]{}\\|;:'\",./<>_`~?"
var badNum = "345678"
var badNum2 = "12345678"
var sEmail = document.forms[0].email.value
var bGender1 = document.forms[0].gender[0].checked
var bGender2 = document.forms[0].gender[1].checked
var sUsername = document.forms[0].username.value
var sPassword = document.forms[0].pass1.value
var sPassword2 = document.forms[0].pass2.value
var iMonth = document.forms[0].month.selectedIndex
var iDay = document.forms[0].day.selectedIndex
var iYear = document.forms[0].year.value
var sState = document.forms[0].State.selectedIndex
var sCountry = document.forms[0].Country.selectedIndex
if (sUsername.length < 1) {
alert("You must supply your username!")
return false
}
for(var i = 0; i <= sUsername.length-1; i ++){
for(var j = 0; j <= badChar.length-1; j++){
if (sUsername.charAt(i)==badChar.charAt(j)){
alert("Your username contains an invalid character!\n\nUsernames may only contain letters and numbers\n no spaces, special characters or symbols allowed.")
return false
}
}
}
if ((sUsername.length < 4) || (sUsername.length > 14)){
alert("Your username must be between 4 and 14 characters!")
return false
}
if (sPassword != sPassword2) {
alert("Your passwords don't match!")
return false
}
if ((sPassword.length < 1) ||(sPassword2.length < 1)){
alert("Your password is required!")
return false
}
if ((sPassword.length < 4) || (sPassword.length > 14)){
alert("Your password must be between 4 and 14 characters!")
return false
}
if (sFirstname.length < 1) {
alert("Your first name is required!")
return false
}
if(sLastname.length < 1){
alert("Your last name is required!")
return false
}
for(var j = 0; j <= badChar.length - 1; j++) {
if (sFirstname.charAt(0) == badChar.charAt(j)){
alert("Your first name cannot begin with an invalid character!")
return false
}
}
for(var j = 0; j <= badChar.length - 1; j++) {
if (sLastname.charAt(0) == badChar.charAt(j)){
alert("Your last name cannot begin with an invalid character!")
return false
}
}
if (!bGender1 && !bGender2){
alert("You need to choose a gender!")
return false
}
if(iMonth == 0 || iDay == 0 ){
alert("You need to put in your Birthdate!")
return false
}
if(iYear.length < 1){
alert("You need to put your Birth Year!")
return false
}
if(iYear.length < 4){
alert("You need to put your Birth Year!")
return false
}
if (iYear.charAt(0) == 1){
if (iYear.charAt(0) == 1 && iYear.charAt(1) != 9){
alert("Your birth year must be between 1900 and 2000!")
return false
}
}
if (iYear.charAt(0) == 2){
if (iYear.charAt(0) == 2 && iYear.charAt(1) != 0){
alert("Your birth year must be between 1900 and 2000!")
return false
}
}
if (sEmail.length < 1) {
alert("You must supply a valid e-mail address!")
return false
}
if (sEmail.length > 1) {
if (sEmail.indexOf("@") == -1) {
alert("You did not type a valid e-mail address!")
return false
}
}
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(Form.sEmail.value)){
return true
}
Else{
alert("Invalid E-mail Address! Please re-enter.")
return false
}
if((sState == 0 ) && (sCountry == 0) ){
alert("You must select either a state or a country where you are from!")
return false
}
}
</script>
</head>
<body bgcolor="#ffffff" text="#000000">
<table border="0" width="100%" cellspacing="0" cellpadding="0">
<td align=center>
<!--<p align="left"><H2>Register Now</p>-->
<form action="register2.asp" method="post" onSubmit="return validateForm()">
<table border=1 bordercolor=black cellspacing=0 cellpadding=1 width=490 bgcolor="#EFEFEF">
<tr CLASS="CAL">
<td colspan=1>Registration</td>
</tr>
<tr>
<td align=center>
<table border=0 cellspacing=0 cellpadding=2 width=460 bgcolor="#EFEFEF">
<tr><td colspan=4><IMG src="img/pixel.gif" width="1" height="1" border="0"></td></tr>
<tr CLASS="Data"><td colspan=4>Account Information</td></tr>
<tr><td colspan=4><IMG src="img/pixel.gif" width="1" height="1" border="0"></td></tr>
<tr><td width=120><b>Username: </b></td>
<td><input type="text" name="username" CLASS="Input" size=20 maxlength=15> </td>
<td Class="Small" colspan=2>Begin with a letter, and use only letters (a-z), numbers (0-9), the underscore (_), and no spaces.</td>
</tr>
<tr><td><b>Password:</b></td>
<td><input type="password" name="pass1" CLASS="Input" size=20 maxchars=14></td>
</tr>
<tr><td><b>Password (again): </b></td>
<td><input type="password" name="pass2" CLASS="Input" size=20 maxchars=14></td>
</tr>
<tr><td><b>Secret Question: </b></td>
<td colspan=2><input type="text" name="question" CLASS="Input" size=20 maxchars=50></td>
</tr>
<tr><td><b>Answer: </b></td>
<td><input type="text" name="answer" CLASS="Input" size=20 maxchars=40></td>
</tr>
<tr><td><b>Notify Me: </b></td>
<td><input type="radio" name="notify" value="Yes" checked >Yes
<input type="radio" name="notify" value="No" >No</td>
<td Class="Small" colspan=2>Check yes if you would like to be notified when you have new messages.</td>
<tr>
<tr><td colspan=4><IMG src="img/pixel.gif" width="1" height="1" border="0"></td></tr>
<tr CLASS="Data"><td colspan=4>Personal Profile</td></tr>
<tr><td colspan=4><IMG src="img/pixel.gif" width="1" height="1" border="0"></td></tr>
<tr><td><b>First Name: </b></td>
<td><input type="text" name="first" CLASS="Input" size=20 maxchars=15></td>
</tr>
<tr><td><b>Last Name: </b></td>
<td><input type="text" name="last" CLASS="Input" size=20 maxchars=15></td>
</tr>
<tr><td><b>Gender: </b></td>
<td><input type="radio" name="gender" value="male" checked >Male
<input type="radio" name="gender" value="female" >Female</td>
<tr>
<td><b>Birthday: </b></td>
<td>
<select name="month">
<option value="0">Month<option value="1">January<option value="2">February
<option value="3">March<option value="4">April<option value="5">May
<option value="6">June<option value="7">July<option value="8">August
<option value="9">September<option value="10">October<option value="11">November
<option value="12">December</select><nobr>
<select name="day" >
<option value="0">Day<option value="1">1<option value="2">2<option value="3">3
<option value="4">4<option value="5">5<option value="6">6<option value="7">7
<option value="8">8<option value="9">9<option value="10">10<option value="11">11
<option value="12">12<option value="13">13<option value="14">14<option value="15">15
<option value="16">16<option value="17">17<option value="18">18<option value="19">19
<option value="20">20<option value="21">21<option value="22">22<option value="23">23
<option value="24">24<option value="25">25<option value="26">26<option value="27">27
<option value="28">28<option value="29">29<option value="30">30<option value="31">31
</select></td>
<td colspan=2><input type="text" name="year" value="" size="4" maxlength="4" CLASS="Input"> Ex: June 15 1979</td>
</tr>
<tr><td><b>Email<nobr> Address: </b></td>
<td><input type="text" name="email" CLASS="Input" size=20 maxchars=50></td>
</tr>
<tr><td><b>State </b></td>
<td colspan=2><SELECT NAME="State" tabindex=11 ALIGN=MIDDLE onChange="document.forms[0].Country.selectedIndex=0">
<option value="none">(USA Residents: Select a state)
<option value=AL>Alabama
<option value=AK>Alaska
<option value=AZ>Arizona
<option value=AR>Arkansas
<option value=CA>California
<option value=CO>Colorado
<option value=CT>Connecticut
<option value=DE>Delaware
<option value=DC>District of Columbia
<option value=FL>Florida
<option value=GA>Georgia
<option value=HI>Hawaii
<option value=ID>Idaho
<option value=IL>Illinois
<option value=IN>Indiana
<option value=IA>Iowa
<option value=KS>Kansas
<option value=KY>Kentucky
<option value=LA>Louisiana
<option value=ME>Maine
<option value=MD>Maryland
<option value=MA>Massachusetts
<option value=MI>Michigan
<option value=MN>Minnesota
<option value=MS>Mississippi
<option value=MO>Missouri
<option value=MT>Montana
<option value=NE>Nebraska
<option value=NV>Nevada
<option value=NH>New Hampshire
<option value=NJ>New Jersey
<option value=NM>New Mexico
<option value=NY>New York
<option value=NC>North Carolina
<option value=ND>North Dakota
<option value=OH>Ohio
<option value=OK>Oklahoma
<option value=OR>Oregon
<option value=PA>Pennsylvania
<option value=RI>Rhode Island
<option value=SC>South Carolina
<option value=SD>South Dakota
<option value=TN>Tennessee
<option value=TX>Texas
<option value=UT>Utah
<option value=VT>Vermont
<option value=VA>Virginia
<option value=WA>Washington
<option value=WV>West Virginia
<option value=WI>Wisconsin
<option value=WY>Wyoming
</SELECT></td>
</tr>
<tr><td><b>Country</b></td>
<td colspan=2><select tabindex=12 name="Country" onChange="document.forms[0].State.selectedIndex=0">
<option value="none">(Only select a country if outside USA)
<option value=AF>Afghanistan
<option value=AI>Albania
<option value=AG>Algeria
<option value=AS>American Samoa
<option value=AN>Andorra
<option value=AO>Angola
<option value=AA>Anguilla
<option value=AC>Antarctica
<option value=AB>Antigua and Barbuda
<option value=AT>Argentina
<option value=AM>Armenia
<option value=AU>Aruba
<option value=AW>Australia
<option value=AX>Austria
<option value=AY>Azerbaijan
<option value=BA>Bahamas
<option value=BH>Bahrain
<option value=BG>Bangladesh
<option value=BB>Barbados
<option value=BL>Belarus
<option value=BM>Belgium
<option value=BZ>Belize
<option value=BN>Benin
<option value=BR>Bermuda
<option value=BT>Bhutan
<option value=BV>Bolivia
<option value=BS>Bosnia and Herzegovina
<option value=BW>Botswana
<option value=BI>Bouvet Island
<option value=BX>Brazil
<option value=BO>British Indian Ocean Territory
<option value=BY>British Virgin Islands
<option value=BU>Brunei
<option value=BP>Bulgaria
<option value=BF>Burkina Faso
<option value=BD>Burundi
<option value=CB>Cambodia
<option value=CM>Cameroon
<option value=CN>Canada
<option value=CV>Cape Verde
<option value=CI>Cayman Islands
<option value=CR>Central African Republic
<option value=CH>Chad
<option value=CL>Chile
<option value=CX>China
<option value=CS>Christmas Island
<option value=CC>Cocos Islands
<option value=CW>Colombia
<option value=CE>Comoros
<option value=CG>Congo
<option value=CK>Cook Islands
<option value=CD>Costa Rica
<option value=CQ>Croatia
<option value=CU>Cuba
<option value=CY>Cyprus
<option value=CZ>Czech Republic
<option value=DN>Denmark
<option value=DJ>Djibouti
<option value=DO>Dominica
<option value=DR>Dominican Republic
<option value=EA>East Timor
<option value=EC>Ecuador
<option value=EG>Egypt
<option value=EL>El Salvador
<option value=EQ>Equatorial Guinea
<option value=ER>Eritrea
<option value=ES>Estonia
<option value=ET>Ethiopia
<option value=FA>Falkland Islands
<option value=FO>Faroe Islands
<option value=FI>Fiji
<option value=FN>Finland
<option value=FR>France
<option value=FG>French Guiana
<option value=FP>French Polynesia
<option value=FS>French Southern Territories
<option value=GB>Gabon
<option value=GM>Gambia
<option value=GO>Georgia
<option value=GE>Germany
<option value=GH>Ghana
<option value=GI>Gibraltar
<option value=GR>Greece
<option value=GL>Greenland
<option value=GN>Grenada
<option value=GU>Guadeloupe
<option value=GX>Guam
<option value=GT>Guatemala
<option value=GV>Guinea
<option value=GS>Guinea-Bissau
<option value=GY>Guyana
<option value=HA>Haiti
<option value=HE>Heard and McDonald Islands
<option value=HO>Honduras
<option value=HK>Hong Kong
<option value=HU>Hungary
<option value=IC>Iceland
<option value=II>India
<option value=IO>Indonesia
<option value=IR>Iran
<option value=IQ>Iraq
<option value=IE>Ireland
<option value=IS>Israel
<option value=IT>Italy
<option value=IV>Ivory Coast
<option value=JA>Jamaica
<option value=JP>Japan
<option value=JO>Jordan
<option value=KA>Kazakhstan
<option value=KE>Kenya
<option value=KI>Kiribati
<option value=KN>Korea, North
<option value=KO>Korea, South
<option value=KU>Kuwait
<option value=KG>Kyrgyzstan
<option value=LO>Laos
<option value=LT>Latvia
<option value=LE>Lebanon
<option value=LS>Lesotho
<option value=LI>Liberia
<option value=LB>Libya
<option value=LC>Liechtenstein
<option value=LH>Lithuania
<option value=LU>Luxembourg
<option value=MU>Macau
<option value=MC>Macedonia, Frmr Yugo. Rep. of
<option value=MG>Madagascar
<option value=MW>Malawi
<option value=ML>Malaysia
<option value=MV>Maldives
<option value=MM>Mali
<option value=MB>Malta
<option value=MF>Marshall Islands
<option value=MQ>Martinique
<option value=MH>Mauritania
<option value=MJ>Mauritius
<option value=MK>Mayotte
<option value=MX>Mexico
<option value=MP>Micronesia, Federated States of
<option value=NB>Moldova
<option value=NF>Monaco
<option value=NN>Mongolia
<option value=MR>Montserrat
<option value=NO>Morocco
<option value=MZ>Mozambique
<option value=MY>Myanmar
<option value=NA>Namibia
<option value=NU>Nauru
<option value=NP>Nepal
<option value=NT>Netherlands
<option value=NL>Netherlands Antilles
<option value=NW>New Caledonia
<option value=NZ>New Zealand
<option value=NG>Nicaragua
<option value=NR>Niger
<option value=NI>Nigeria
<option value=NX>Niue
<option value=NK>Norfolk Island
<option value=NS>Northern Mariana Islands
<option value=NQ>Norway
<option value=OM>Oman
<option value=OO>Other (please specify)
<option value=PK>Pakistan
<option value=PL>Palau
<option value=PN>Panama
<option value=PP>Papua New Guinea
<option value=PR>Paraguay
<option value=PE>Peru
<option value=PH>Philippines
<option value=PT>Pitcairn Island
<option value=PO>Poland
<option value=PG>Portugal
<option value=PU>Puerto Rico
<option value=QA>Qatar
<option value=RE>Reunion
<option value=RO>Romania
<option value=RU>Russia
<option value=RW>Rwanda
<option value=SG>S. Georgia and S. Sandwich Isls.
<option value=SK>Saint Kitts & Nevis
<option value=SL>Saint Lucia
<option value=SV>Saint Vincent and The Grenadines
<option value=SO>Samoa
<option value=SM>San Marino
<option value=ST>Sao Tome and Principe
<option value=SA>Saudi Arabia
<option value=SN>Senegal
<option value=SY>Seychelles
<option value=SI>Sierra Leone
<option value=SP>Singapore
<option value=SJ>Slovakia
<option value=SX>Slovenia
<option value=SS>Somalia
<option value=SF>South Africa
<option value=SB>Spain
<option value=SR>Sri Lanka
<option value=SE>St. Helena
<option value=SH>St. Pierre and Miquelon
<option value=SU>Sudan
<option value=SQ>Suriname
<option value=JM>Svalbard and Jan Mayen Islands
<option value=WZ>Swaziland
<option value=SZ>Sweden
<option value=SW>Switzerland
<option value=YR>Syria
<option value=TA>Taiwan
<option value=TJ>Tajikistan
<option value=TZ>Tanzania
<option value=TH>Thailand
<option value=TO>Togo
<option value=TK>Tokelau
<option value=TG>Tonga
<option value=TR>Trinidad and Tobago
<option value=TU>Tunisia
<option value=TY>Turkey
<option value=TT>Turkmenistan
<option value=TC>Turks and Caicos Islands
<option value=TV>Tuvalu
<option value=UM>U.S. Minor Outlying Islands
<option value=UG>Uganda
<option value=UE>Ukraine
<option value=UA>United Arab Emirates
<option value=UK>United Kingdom
<option value=UR>Uruguay
<option value=UZ>Uzbekistan
<option value=VN>Vanuatu
<option value=VC>Vatican City
<option value=VZ>Venezuela
<option value=VM>Vietnam
<option value=VG>Virgin Islands
<option value=WF>Wallis and Futuna Islands
<option value=WE>Western Sahara
<option value=YE>Yemen
<option value=YM>Yugoslavia (Former)
<option value=ZA>Zaire
<option value=ZM>Zambia
<option value=ZB>Zimbabwe
</select></td>
</tr>
</table>
</td></tr>
</table>
<p>
<input type="submit" value="Submit Registration"> <input type="Reset" value="Start Over">
</form>
</td></tr>
</table>
</body>
</html>
Comentarios originales (3)
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