Javascript onChange event in PHP

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  • countocram
    New Member
    • Sep 2006
    • 3
    #1

    Javascript onChange event in PHP

    hi! Im having a problem retaining the inputs on my text fields. When i selected an option from a dropdown list with an onChange=locati on.. event. What happen is that, everytime I choose an option the page will reload then the inputs on my text field will disappear...

    sample HTML:

    <INPUT type="text" name="help_titl e" size="50">
    <textarea cols="50" rows="15" name="help_cont ent"></textarea>

    <select name="main_topi c" onChange="locat ion='help_add_f orm.php?help_id ='+this.options[this.selectedIn dex].value+'&help_s ub_id='">
    <option value="option"> option1</option>
    </select>

    my question is, how can i retain the values on the input fields when an onchange event was triggered?

    hope to hear from you guys! thanks!
    Tags: ajax onchange
    • PLA
      New Member
      • Aug 2006
      • 44
      #2
      Did you try to use a onchange="myfor m.submit();" instead ?
      All values will be in the request, then you can give it back in the form.

      <INPUT type="text" name="help_titl e" size="50" value="OldText" >

        Comment

        • countocram
          New Member
          • Sep 2006
          • 3
          #3
          Originally posted by PLA
          Did you try to use a onchange="myfor m.submit();" instead ?
          All values will be in the request, then you can give it back in the form.

          <INPUT type="text" name="help_titl e" size="50" value="OldText" >
          Thanks for your reply PLA, but how can i pass on the value of my location to the address bar if i will use myform.submit() ;

          I'm sorry asking a lot, im new on these stuffs...

            Comment

            • PLA
              New Member
              • Aug 2006
              • 44
              #4
              Originally posted by countocram
              Thanks for your reply PLA, but how can i pass on the value of my location to the address bar if i will use myform.submit() ;

              I'm sorry asking a lot, im new on these stuffs...
              Code:
              <html>
 <head>
  </head>
  <body>
    <form action="test.php" method="PUT" name="myform">
      <input type="text" name="help_title" size="50" value=<?print $help_title?>>
      <textarea cols="50" rows="15" name="help_content"><?print $help_content?></textarea>
      <select name="main_topic" onChange="myform.submit();">
        <option value="option1" <?if ($main_topic == "option1") print selected?>>option1</option>
        <option value="option2" <?if ($main_topic == "option2") print selected?>>option2</option>
        <option value="option3" <?if ($main_topic == "option3") print selected?>>option3</option>
      </select>
    </form>
  </body>
</html>
              May that help

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