vb.org Archive - View Single Post - using JavaScript with PHP to create a dynamic form.

lightnb · #2 05-30-2006, 02:40 AM

Here's what I'm trying:

PHP Code:


			
echo '<head>';

if ($MFh){echo '            
<script type="text/javascript">

function showinput(is_par) {
  if (is_par == 1) {
    document.getElementById("addfield").innerHTML = "<tr><td>Multiplier Factor (Horizontal):</td><td><input type="text" name="MFh" value="'.$MFh.'"></td></tr>";
    } else     if (is_par == 0) {
    document.getElementById("addfield").innerHTML = "";
    }   
}';
echo '</script>';
}else
{echo '

<script type="text/javascript">

function showinput(is_par) {
  if (is_par == 1) {
    document.getElementById("addfield").innerHTML = "<tr><td>Multiplier Factor (Horizontal):</td><td><input type="text" name="MFh" value="'.htmlspecialchars($_POST['MFh']).'"></td></tr>";
    } else     if (is_par == 0) {
    document.getElementById("addfield").innerHTML = "";
    }   
}
</script>';
}

echo '</head><body>';

My selection:

PHP Code:


			
echo '
    
    <select class="pulldown" name="is_par" id="is_par" onChange="javascript: showinput(document.getElementById(\'is_par\').selectedIndex)">
    <option value="null" selected="selected">---</option>
    <option value="no">No</option>
    <option value="yes">Yes</option>
    </select>';

and the Div tag where the new field should apear:

PHP Code:


			
echo '<div id="addfield"></div>';

There's no Parse Errors, but the Javascript has no effect.

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.01156 seconds Memory Usage 1,779KB Queries Executed 11 (?)
More Information
Template Usage: (1)SHOWTHREAD_SHOWPOST (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (3)bbcode_php (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_box (1)post_thanks_button (1)post_thanks_javascript (1)post_thanks_navbar_search (1)post_thanks_postbit_info (1)postbit (1)postbit_onlinestatus (1)postbit_wrapper (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit reputationlevel showthread	Included Files: ./showpost.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/functions_bigthree.php ./includes/class_postbit.php ./includes/class_bbcode.php ./includes/functions_reputation.php ./includes/functions_post_thanks.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_postinfo_query fetch_postinfo fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete showpost_start bbcode_fetch_tags bbcode_create postbit_factory showpost_post postbit_display_start post_thanks_function_post_thanks_off_start post_thanks_function_post_thanks_off_end post_thanks_function_fetch_thanks_start post_thanks_function_fetch_thanks_end post_thanks_function_thanked_already_start post_thanks_function_thanked_already_end fetch_musername postbit_imicons bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete postbit_display_complete post_thanks_function_can_thank_this_post_start showpost_complete
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