add 14 days to value

[liamloveslearning]

hi everyone, I have to text fields, the second needs to take its initial value from the user inputted date in the first and add 14 days but generate it on the fly, Has anybody experience with this?

    </tr>
    <tr>
      <td class="KT_th"><label for="intraartapproval">Art Appr. Date</label></td>
      <td><input type="text" name="intraartapproval" id="intraartapproval" value="<?php echo KT_escapeAttribute($row_rsworksorders['intraartapproval']); ?>" size="32" />
        <?php echo $tNGs->displayFieldHint("intraartapproval");?> <?php echo $tNGs->displayFieldError("worksorders", "intraartapproval"); ?></td>
    </tr>
    <tr>
      <td class="KT_th"><label for="intraestimatedinstall">Est. Install</label></td>
      <td><input type="text" name="intraestimatedinstall" id="intraestimatedinstall" value="USER INPUTTED DATE + 14 DAYS" size="32" />
        <?php echo $tNGs->displayFieldHint("intraestimatedinstall");?> <?php echo $tNGs->displayFieldError("worksorders", "intraestimatedinstall"); ?></td>
    </tr>

[Muddy_Funster]

I havn't tried anything like that myself, but I think you will need to use client side scripting on the onChange attribute of the first text box to get the result you are looking for in the second to apear without sending the form back to the server for pre-proccessing.

[cyberRobot]

@liamloveslearning

 

Are you familiar with JavaScript?

 

 

If so, you should be able to do something like this:

<form name="myForm">
<label for="intraartapproval">Art Appr. Date</label> <input type="text" name="intraartapproval" id="intraartapproval" size="32" onchange="myForm.intraestimatedinstall.value = Number(this.value) + 14;" /><br />
<label for="intraestimatedinstall">Est. Install</label> <input type="text" name="intraestimatedinstall" id="intraestimatedinstall" size="32" />
</form>

 

 

Note that the above code only works with integers. You'll need to modify the code to work with dates. It looks like it may be a little bit of work, but you should be able to use some of the JavaScript functions found here:

http://www.elated.com/articles/working-with-dates/

[liamloveslearning]

Thanks cyberrobot, unfortunately im a complete novice with JS however