Calling a function...

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  • DSL
    #1

    Calling a function...

    I'm pulling my little hair that's left out trying to figure out how I can
    call a function from within a function. Here's the deal... and yes I know I
    should be using PHP!

    I have a password login screen for three users who have individual
    pre-assigned passwords so i need some logic testing as per below


    // ========START OF CODE=========

    //This is the function to find out who is logging in
    function validate()
    {
    //Change case from the input
    var usrid=document. form.usrid.valu e.toLowerCase()

    //Simple if statement for the who's logging in logic
    if(usrid=="TEST ") //**??THIS IS WHERE I HAVE PROBLEM 1 (FOR
    SURE)??**
    else
    if(usrid=="") alert("ID REQUIRED!")
    }

    //This is the password check for the user TEST
    function validateTESTIDP wd()
    {
    //Change case from the input
    var pwd=document.fo rm.pwd.value.to LowerCase()

    //Validate password
    if(pwd=="TEST") //**?? THIS IS WHERE I HAVE PROBLEM 2 (MAYBE)??**
    else
    alert("Password Incorrect!")
    }

    // ========END OF CODE=========

    OK, so problem 1: How can I call the validateTESTIDP wd() function
    and problem 2: After confirming the identity of user TEST I want to open up
    a page in the current frame. Does anyone know how to manipulate my frames
    from this point?

    All help appreciated.

    Cheers,

    Matt


    Tags: None
    • Mick White
      #2
      Re: Calling a function...

      DSL wrote:


      function popup(txt){aler t(txt)}
      function validateTESTIDP wd(){
      if(document.for m.pwd.value.toL owerCase()=="te st"){
      popup("Password Correct");
      return;
      }
      alert("Password Incorrect!")
      }

      Mick

        Comment

        • Robert
          #3
          Re: Calling a function...

          In article <c63m3u$79g$1@s parta.btinterne t.com>,
          "DSL" <matt.sapsford@ btinternet.com> wrote:
          [color=blue]
          > I'm pulling my little hair that's left out trying to figure out how I can
          > call a function from within a function. Here's the deal... and yes I know I
          > should be using PHP![/color]

          What is the point of check the userid & password in javascript? The
          user can just read the javascript code.
          [color=blue]
          > I have a password login screen for three users who have individual
          > pre-assigned passwords so i need some logic testing as per below[/color]
          [color=blue]
          >
          > OK, so problem 1: How can I call the validateTESTIDP wd() function
          > and problem 2:[/color]

          Below is an example of checking the userid. The code of the HTML form
          could be improved, but it demonstrates what you need.

          Robert

          <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
          <html>
          <head>
          <title>Chapte r 4 - Scripting Exercise 5</title>

          <SCRIPT type="text/javascript">

          //This is the function to find out who is logging in
          function validate(userid )
          {
          alert("Checking for " + userid);
          // Change case from the input
          // -- so you need to check in lower case
          var userid=userid.t oLowerCase()

          //Simple if statement for the who's logging in logic
          if(userid=="tes t")
          {
          // Suggest you put the trailing if code in a block.
          // It's ease to forget when adding a line.
          alert(userid + " is a valid userid");
          return true
          }
          else
          if(userid=="")
          {
          // Tell the user how to fix the problem not what is wrong.
          alert("Please enter a valid userid");
          return false
          }
          else
          {
          alert("Please enter a valid userid. This one is not known.");
          return false
          }


          }
          </script>

          </head>
          <body>
          <form action="" method="post" name="submituse rid"
          onSubmit="answe r = validate(docume nt.forms[0].theUserid.valu e);
          alert('valid user = ' + answer);">
          <b>What is your userid?&nbsp&nb sp
          <input type="text" id="theUserid" size="10" maxlength="16"> <br>
          <input type="submit" name="submit" value="Check userid"><br>
          <input type="reset" name="reset" value="Reset Form">
          </form>
          </body>
          </html>

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