Forms - Preventing Multiple Choices from a drop down menu

piratescotty · #1 Jul 26th, 2008, 20:02

Hey everybody hope you're well.

What I have in my form is 9 drop down menus with 24 options in each menu.

Each of the drop down menus have the same 24 choices but I need to stop people choosing the same option twice or more.

Here is my code...

Code: Select all

<form action="http://www.formlog.com/cgi-bin/formuk.cgi" onsubmit="return validate_form(this)" method="POST">
<input type="hidden" name="username" value="piratescotty"> 
    <table border="10" cellpadding="2" cellspacing="1" bordercolor="0000FF" bordercolorlight="6666FF" 

bordercolordark="0000CC">
      <tr> 
        <td><div align="right"><font face="Arial" color="white">Username</font></div></td>
        <td><input type="text" name="name" rows="1" cols="20"></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">&nbsp;</font></div></td>
        <td>&nbsp;</td>

      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">1st</font></div></td>
        <td> <SELECT name="1st">
                        <OPTION value="Accrington" selected>Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">2nd</font></div></td>

        <td> <SELECT name="2nd">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot" selected>Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">3rd</font></div></td>
        <td> <SELECT name="3rd">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet" selected>Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>

      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">4th</font></div></td>
        <td> <SELECT name="4th">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford" selected>Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">5th</font></div></td>

        <td> <SELECT name="5th">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford" selected>Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">6th</font></div></td>
        <td> <SELECT name="6th">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury" selected>Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>

      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">7th</font></div></td>
        <td> <SELECT name="7th">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester" selected>Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">&nbsp;</font></div></td>
        <td>&nbsp;</td>

      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">23rd</font></div></td>
        <td> <SELECT name="23rd">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury" selected>Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe">Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td><div align="right"><font face="Arial" color="white">24th</font></div></td>

        <td> <SELECT name="24th">
                        <OPTION value="Accrington">Accrington Stanley</OPTION>
                        <OPTION value="Aldershot">Aldershot Town</OPTION>
                        <OPTION value="Barnet">Barnet</OPTION>
                        <OPTION value="Bournemouth">Bournemouth</OPTION>
                        <OPTION value="Bradford">Bradford City</OPTION>
                        <OPTION value="Brentford">Brentford</OPTION>
                        <OPTION value="Bury">Bury</OPTION>
                        <OPTION value="Chester">Chester City</OPTION>
                        <OPTION value="Chesterfield">Chesterfield</OPTION>
                        <OPTION value="Dagenham">Dagenham & Redbridge</OPTION>
                        <OPTION value="Darlington">Darlington</OPTION>
                        <OPTION value="Exeter">Exeter City</OPTION>
                        <OPTION value="Gillingham">Gillingham</OPTION>
                        <OPTION value="Grimsby">Grimsby Town</OPTION>
                        <OPTION value="Lincoln">Lincoln City</OPTION>
                        <OPTION value="Luton">Luton Town</OPTION>
                        <OPTION value="Macclesfield">Macclesfield Town</OPTION>
                        <OPTION value="Morecambe">Morecambe</OPTION>
                        <OPTION value="Notts County">Notts County</OPTION>
                        <OPTION value="Port Vale">Port Vale</OPTION>
                        <OPTION value="Rochdale">Rochdale</OPTION>
                        <OPTION value="Rotherham">Rotherham United</OPTION>
                        <OPTION value="Shrewsbury">Shrewsbury Town</OPTION>
                        <OPTION value="Wycombe" selected>Wycombe Wanderers</OPTION>
                      </SELECT></td>
      </tr>
      <tr> 
        <td height="27"> <div align="right"> 
            <input name="submit" type="submit" value="Submit">
          </div></td>
        <td><input name="reset" type="reset" value="Reset"></td>
      </tr>

    </table>


    </form>

stu2000 · #2 Jul 27th, 2008, 11:35

In your validation script (validate_form) that you call when the form is submitted, you just need to put a call to check each of the select boxes.

Also, it would be best not to start your select box names with a number, so if you call them "first", "second", "third"... etc then you could use the following javascript:

Code: Select all

function validate_form() {
  var value1 = document.formname.first.value;
  var value2 = document.formname.second.value;
  if(value1==value2){
      alert('your error message here!');
      return false;
  }
}

That will pop up a box alerting the user, and will stop the form from submitting.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
multiple drop-down menus	ktsirig	JavaScript Forum	2	May 28th, 2008 23:54
Multiple drop down menus	D4CUE	Web Page Design	3	Mar 6th, 2008 09:06
Multiple forms on Opera	QuikFrozen	Web Page Design	3	Nov 7th, 2006 16:19
Multiple Drop Down	stevoh	PHP Forum	2	Nov 25th, 2005 18:52
Multiple Drop Down Validation	Monie	JavaScript Forum	1	Nov 6th, 2004 08:41

		Webforumz.com > Main Forums > Design Your Website > Web Page Design
Forms - Preventing Multiple Choices from a drop down menu