www.webdeveloper.com
Results 1 to 2 of 2

Thread: Age checker, neem to fill in day and month mandatory

  1. #1
    Join Date
    Aug 2010
    Location
    Tetouán, Morocco
    Posts
    9

    Question Age checker, neem to fill in day and month mandatory

    Hi there, Ive got the following problem:

    Code:
    Code:
    	<script language="javascript">
    		function checkAge()
    		{
    			/* the minumum age you want to allow in */
    			var min_age = 16;
    
    			/* change "age_form" to whatever your form has for a name="..." */
    			var year = parseInt(document.forms["age_form"]["year"].value);
    			var month = parseInt(document.forms["age_form"]["month"].value) - 1;
    			var day = parseInt(document.forms["age_form"]["day"].value);
    
    			var theirDate = new Date((year + min_age), month, day);
    			var today = new Date;
    			 
    			
    			if ( (today.getTime() - theirDate.getTime()) < 0) {
    				alert("Youre too young!");
    				return false;
    			}
    			else {
    				return true;
    			}
    		}
    	</script>
    This code above works, and when submitted the form, it checks the age for the minimum of 16. As you can see.

    Ive got a problem that it doesnt look at the days / month given.
    Default the list is set at a value of 00.

    I would like to add some additional JS code to check if the day and month have been given.
    If not given. An alert box popup with a message will be displayed.

    How would be that be achieved? Any advice is more than welcome since im a JS noob. Thanks!

  2. #2
    Join Date
    Dec 2005
    Location
    TX
    Posts
    7,943

    Lightbulb

    Try this change...
    Code:
    <!DOCTYPE html>
    <html lang="en">
    <head>
    <meta charset="utf-8" />
    <title> Untitled </title>
    <script type="text/javascript">
    
    </script>
    
    <style type="text/css">
    
    </style>
    </head>
    <body>
    <form name="age_form" action="" method="post" onsubmit="return false">
     <select name="month" id="month"></select>
     <select name="day" id="day"></select>
     <select name="year" id="year"></select>
     <button onclick="checkAge()">Check Age</button>
    </form>
    
    <script type="text/javascript">
    function checkAge() {
    /* the minumum age you want to allow in */
      var min_age = 16;
    
    /* change "age_form" to whatever your form has for a name="..." */
      var year = parseInt(document.age_form.year.value);
      var month = parseInt(document.age_form.month.value) - 1;
      var day = parseInt(document.age_form.day.value);
    
      var theirDate = new Date((year + min_age), month, day);
      var today = new Date();
    			
      if ( (today - theirDate)< 0) {
        alert("You're too young!");
        return false;
      } else {
        return true;
      }
    }
    Array.prototype.applySelect = function(IDS) {
      var tarr = [];
      tarr.push('<option value="">'+this[0]+'</option>');
      for (var i=1; i<this.length; i++) {tarr.push('<option value="'+this[i]+'">'+this[i]+'</option>'); }
      document.getElementById(IDS).innerHTML = tarr.join('\n');
      return;
    }
    
    var now = new Date();
    window.onload = function() {
      ['Month','1','2','3','4','5','6','7','8','9','10','11','12'].applySelect('month');
      var tarr = [];
      tarr.push('Day');  for (var i=1; i<32; i++) { tarr[i] = i; }  
      tarr.applySelect('day');
      tarr = [];
      tarr.push('Year');  
      var yr = now.getFullYear();
      for (var i=0; i<21; i++) { tarr.push(yr-i); }  
      tarr.push((yr-21).toString()+' or before');
      tarr.applySelect('year');
    }
    </script>
    
    </body>
    </html>

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
HTML5 Development Center

"

"

X vBulletin 4.2.2 Debug Information

  • Page Generation 0.15112 seconds
  • Memory Usage 2,849KB
  • Queries Executed 15 (?)
More Information
Template Usage (33):
  • (1)SHOWTHREAD
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_global_above_footer
  • (1)ad_global_below_navbar
  • (1)ad_global_header1
  • (1)ad_global_header2
  • (1)ad_navbar_below
  • (1)ad_showthread_firstpost_sig
  • (1)ad_showthread_firstpost_start
  • (1)ad_thread_first_post_content
  • (1)ad_thread_last_post_content
  • (2)bbcode_code
  • (1)footer
  • (1)forumjump
  • (1)forumrules
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (1)headinclude_bottom
  • (2)memberaction_dropdown
  • (1)navbar
  • (4)navbar_link
  • (1)navbar_moderation
  • (1)navbar_noticebit
  • (1)navbar_tabs
  • (2)option
  • (2)postbit
  • (2)postbit_onlinestatus
  • (2)postbit_wrapper
  • (1)spacer_close
  • (1)spacer_open
  • (1)tagbit_wrapper 

Phrase Groups Available (6):
  • global
  • inlinemod
  • postbit
  • posting
  • reputationlevel
  • showthread
Included Files (26):
  • ./showthread.php
  • ./global.php
  • ./includes/class_bootstrap.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/functions_navigation.php
  • ./includes/class_friendly_url.php
  • ./includes/class_hook.php
  • ./includes/class_bootstrap_framework.php
  • ./vb/vb.php
  • ./vb/phrase.php
  • ./includes/functions_facebook.php
  • ./includes/functions_calendar.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_notice.php
  • ./packages/vbattach/attach.php
  • ./vb/types.php
  • ./vb/cache.php
  • ./vb/cache/db.php
  • ./vb/cache/observer/db.php
  • ./vb/cache/observer.php 

Hooks Called (73):
  • init_startup
  • friendlyurl_resolve_class
  • init_startup_session_setup_start
  • database_pre_fetch_array
  • database_post_fetch_array
  • init_startup_session_setup_complete
  • global_bootstrap_init_start
  • global_bootstrap_init_complete
  • cache_permissions
  • fetch_postinfo_query
  • fetch_postinfo
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • load_show_variables
  • load_forum_show_variables
  • global_state_check
  • global_bootstrap_complete
  • global_start
  • style_fetch
  • global_setup_complete
  • showthread_start
  • showthread_getinfo
  • strip_bbcode
  • friendlyurl_clean_fragment
  • friendlyurl_geturl
  • forumjump
  • cache_templates
  • cache_templates_process
  • template_register_var
  • template_render_output
  • fetch_template_start
  • fetch_template_complete
  • parse_templates
  • fetch_musername
  • notices_check_start
  • notices_noticebit
  • process_templates_complete
  • friendlyurl_redirect_canonical
  • showthread_post_start
  • showthread_query_postids
  • showthread_query
  • bbcode_fetch_tags
  • bbcode_create
  • showthread_postbit_create
  • postbit_factory
  • postbit_display_start
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • memberaction_dropdown
  • tag_fetchbit
  • tag_fetchbit_complete
  • forumrules
  • navbits
  • navbits_complete
  • build_navigation_data
  • build_navigation_array
  • check_navigation_permission
  • process_navigation_links_start
  • process_navigation_links_complete
  • set_navigation_menu_element
  • build_navigation_menudata
  • build_navigation_listdata
  • build_navigation_list
  • set_navigation_tab_main
  • set_navigation_tab_fallback
  • navigation_tab_complete
  • fb_like_button
  • showthread_complete
  • page_templates