Showing posts with label FORM VALIDATION USING JAVA SCRIPT. Show all posts
Showing posts with label FORM VALIDATION USING JAVA SCRIPT. Show all posts

Wednesday, May 20, 2015

FORM VALIDATION USING JAVA SCRIPT

Aim:
            To design a webpage to validate a form

Algorithm:

  1. Design a page for signup form with rich user interface.
  2. Write the java script function to validate all mandatory fields on your web page.
  3. Validation should be done after the submit operation.
  4. Use appropriate tags to display the contents.
  5. Make sure the page is working efficiently.

 Program:

signup.html

<html>
            <head>
                        <title>Student Registration Form</title>
                        <script type="text/javascript">
                        <!--
                        function validate()
                        {
                                    if(document.signup.fname.value=="")
                                    {
                                                alert("Please Enter First Name!");
                                                return false;
                                    }
                                    if(document.signup.lname.value=="")
                                    {
                                                alert("Please Enter Last Name!");
                                                return false;
                                    }
                                    if(document.signup.uname.value=="")
                                    {
                                                alert("Please Enter User Name!");
                                                return false;
                                    }
                                    if(document.signup.pword1.value=="")
                                    {
                                                alert("Please Enter Password!");
                                                return false;
                                    }
                                    if(document.signup.pword1.value.length<6)
                                    {
                                                alert("Please enter min 6 characters!");
                                                return false;
                                    }
                                    if(document.signup.pword2.value=="")
                                    {
                                                alert("Please Enter Password again!");
                                                return false;
                                    }
                                    if(document.signup.pword2.value!=document.signup.pword1.value)
                                    {
                                                alert("Password is mismatch. Re-enter password!");
                                                return false;
                                    }
                                    alert("Details Entered Successfully");
                                    display();
                                   
                        }
                        function display()
                        {
                                    document.writeln('<h2>'+"Details Entered..."+'</h2>');
                                    document.writeln('<br/><font color="#0066FF">'+"First Name: "+'</font>'+document.signup.fname.value);
                                    document.writeln('<br/><font color="#0066FF">'+"Last Name: "+'</font>'+document.signup.lname.value);
                                    document.writeln('<br/><font color="#0066FF">'+"User Name: "+'</font>'+document.signup.uname.value);
                                    document.writeln('<br/><font color="#0066FF">'+"Country: "+'</font>'+document.signup.country.value);
                                    document.writeln('<br/><font color="#0066FF">'+"Alternate Email: "+'</font>'+document.signup.aemail.value);
                        }

                        -->