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Another Checkbox question!

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Another Checkbox question!

 
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  #1
Aug 21st, 2009
Hi folks,
I'm afraid I'm pretty new to javascript, so I apologize in advance for my inexperience. I am trying to do a simple thing:

I have a page with three items that I want the user to agree to (a beta signup agreement).

I want them to have to check off all three boxes before the "continue" button becomes active.

I've searched and searched and found a few tutorials, but they only seem to get me halfway and then drop me off a cliff...

I don't need this to be a submit form or anything, just click the three boxes and then you can hit the "continue" button.

Thank you for your help!
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Re: Another Checkbox question!

 
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  #2
Aug 21st, 2009
First you have to disable the submit button then on each checkboxes onclick event do a check to see if all of them are checked, then enable the button again.

code will look something like this:
JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1. function check(){
  2. if (document.getElementById('chkId1').checked==true && document.getElementById('chkId2').checked==true && document.getElementById('chkId3').checked==true){
  3. document.getElementById(button).disabled = ' ';
  4. }
  5. }
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Re: Another Checkbox question!

 
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  #3
Aug 21st, 2009
Would you be willing to give me a snip of html to see what the checkbox and button would look like there in reference to this code?

Thank you for your help!
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Re: Another Checkbox question!

 
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  #4
Aug 21st, 2009
I've got this much, but still trying to figure out the button...

JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1.  <script type="text/javascript">
  2. <!--
  3. function check(){
  4. if (document.getElementById('chkId1').checked==true && document.getElementById('chkId2').checked==true && document.getElementById('chkId3').checked==true){
  5. document.getElementById(button).disabled = ' ';
  6. }
  7. }
  8. // -->
  9. </script>
  10.  
  11.  
  12.  
  13.  
  14. <input name="chkId1" value="1" id="chkId1" type="checkbox">
  15. Terms Agreement</label>
  16. <br>
  17. <label for="myCheckbox2"><input name="chkId2" value="2" id="chkId2" type="checkbox">
  18. Unstable</label>
  19. <br>
  20. <label for="myCheckbox3"><input name="chkId3" value="3" id="chkId3" type="checkbox">
  21. Feedback</label>
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Re: Another Checkbox question!

 
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  #5
Aug 21st, 2009
Hi everyone,

mbirame — you could also try this one:
javascript Syntax (Toggle Plain Text) 
  1. <?xml version="1.0" encoding="utf-8" standalone="no"?>
  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  3.    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  4. <html id="xhtml10" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  5. <!-- W3Cs Standard Template : XHTML 1.0 Transitional DTD -->
  6. <head>
  7. <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  8. <meta http-equiv="Content-Script-Type" content="text/javascript" />
  9. <title>www.daniweb.com</title>
  10. <style type="text/css" media="all">
  11. /* <![CDATA[ */
  12.  
  13. /* ]]> */
  14. </style>
  15. <script type="text/javascript">
  16. // <![CDATA[
  17. var validate = function( form ) {
  18.    var form = ( typeof( form ) === "object" ) ? form : document.getElementById( form );
  19.    var pref = "chb";
  20.    for ( var i = 0; i < 3; i++ ) { 
  21.       if ( form[( pref + i )].checked ) {
  22.          continue;
  23.          return true;
  24.       } alert( "In order to continue, you must check all 3 items in the field" );
  25.    return false;
  26.    }   
  27. };
  28. // ]]>
  29. </script>
  30. </head>
  31. <body id="body0">
  32. <div>
  33. <form id="testform" name="testform" action="process.php" onsubmit="return validate( this );">
  34. <div id="div0">
  35. <label for="chb0"><b>1.</b> Item <input type="checkbox" id="chb0" name="chb0" value="item1" /></label><br />
  36. <label for="chb1"><b>2.</b> Item <input type="checkbox" id="chb1" name="chb1" value="item1" /></label><br />
  37. <label for="chb2"><b>3.</b> Item <input type="checkbox" id="chb2" name="chb2" value="item3" /></label><br /><br />
  38. <input type="submit" value="continue" />
  39. </div>
  40. </form>
  41. </div>
  42. </body>
  43. </html>

hope it both helped...
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Re: Another Checkbox question!

 
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  #6
Aug 21st, 2009
Holy cow-that works beautifully! Thank you both! This was written in a way that I can learn too! Yea!
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