The JavaScript Source: Forms: Rank 'em

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Rank 'em

Create a survey asking people to rank things, and this script will validate that everything is ranked, and no rankings are repeated. Could be adapted into a puzzle or game.

You can incorporate this validation feature into any existing form, any number of times. The form elements must be named consistently so the script can work with them.

To set up a ranked-list survey question as in the examples above, name the <select>s as q + the number of the question + a, b, c, etc. In this case, the form elements are named:

q1a
q1b
q1c
q1d
q2a
q2b
q2c
q2d
q2e

To use the validation, call rankem(a,b) where the parameters are the question number and its length. In this case, the form handler calls the function twice:

rankem(1,4);
rankem(2,5);

Each call will generate a separate alert if there's anything amiss. The global "badrank" variable is a status flag so the main form handler knows if it's allowed to submit(). Note that this demo doesn't acutally do a submit(); instead it just displays a message.

The JavaScript Source: Forms: Rank 'em
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Command-s). The script is yours!!!

  <HEAD> <SCRIPT LANGUAGE="JavaScript">      </script> </HEAD>  <BODY> <p> You can incorporate this validation feature into any existing form, any number of times. The form elements must be named consistently so the script can work with them. <p> <form name="test_form"> <table border=0> <tr valign="top"><td> 1. Ice Cream:<br> <select name="q1a"> <option><option>1<option>2<option>3<option>4 </select> vanilla<br> <select name="q1b"> <option><option>1<option>2<option>3<option>4 </select> chocolate<br> <select name="q1c"> <option><option>1<option>2<option>3<option>4 </select> raspberry<br> <select name="q1d"> <option><option>1<option>2<option>3<option>4 </select> mint<br> </td> <td width="80"> </td> <td> 2. Cars:<br> <select name="q2a"> <option><option>1<option>2<option>3<option>4<option>5 </select> Corvette<br> <select name="q2b"> <option><option>1<option>2<option>3<option>4<option>5 </select> Mustang<br> <select name="q2c"> <option><option>1<option>2<option>3<option>4<option>5 </select> Testarosa<br> <select name="q2d"> <option><option>1<option>2<option>3<option>4<option>5 </select> Esprit<br> <select name="q2e"> <option><option>1<option>2<option>3<option>4<option>5 </select> RX-7<br> </td></tr> <tr><td colspan=2> <input type="button" onClick="validator();" value=" send survey "> </td></tr> </table> </form> To set up a ranked-list survey question as in the examples above, name the <select>s as q + the number of the question + a, b, c, etc. In this case, the form elements are named: <blockquote> q1a<br> q1b<br> q1c<br> q1d<br> q2a<br> q2b<br> q2c<br> q2d<br> q2e</blockquote> <p> To use the validation, call rankem(a,b) where the parameters are the question number and its length. In this case, the form handler calls the function twice: <blockquote> rankem(1,4);<br> rankem(2,5);</blockquote> <p> Each call will generate a separate alert if there's anything amiss. The global "badrank" variable is a status flag so the main form handler knows if it's allowed to submit(). Note that this demo doesn't acutally do a submit(); instead it just displays a message. <p><center> <font face="arial, helvetica" size"-2">Free JavaScripts provided<br> by <a href="http://javascriptsource.com">The JavaScript Source</a></font> </center><p> 
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