Open iframe only when data gets passed

jsantama

I have a page, no frames, and I need to pass some variables from a form to an iframe in the same page.

But, whenever I open the main page, it opens the iframes source, and since I haven't passed any variables, it gives me all sorts of errors. When I pass the variables, it works fine.
The question is: is there a way to not display the info from the iframe, until the form is filled out?
Thanks

drew010

could you paste the page code so i can get a better idea of what it is you already have?

jsantama

Below is some of the code for my page. What I'm trying to do, is a Body Mass Index calculator... I want the following info displayed in my iframe...

<table width="100%" border="0" cellspacing="0" cellpadding="0"><form action="bmibodyfat.php" method="GET" target="bmi">
              <tr> 
                <td width="240"><font color="#000000">Current Weight:</font></td>
                <td><input size=30 type=text name="Array[CurrentWeight]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Desired Weight:</font></td>
                <td><input size=30 type=text name="Array[DesiredWeight]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Weight to Lose:</font></td>
                <td><input size=30 type=text name="Array[WeightLose]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">What programs have been tried:</font></td>
                <td><input size=30 type=text name="Array[WhatPrograms]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Why they didn't work:</font></td>
                <td><input size=30 type=text name="Array[WhyNoWork]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Reason to lose weight:</font></td>
                <td><input size=30 type=text name="Array[ReasonLose]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Serious about losing weight:</font></td>
                <td>
                   <label>
                          <input type="radio" name="Array[Serious]" value="1">
                        <font color="#000000">Yes</font></label>
                        <input type="radio" name="Array[Serious]" value="2">
                        <font color="#000000">No</font></label>
                  </td>
              </tr>
              <tr> 
                <td><font color="#000000">Desired date:</font></td>
                <td><input size=30 type=text name="Array[DesiredDate]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Age:</font></td>
                <td><input size=30 type=text name="Array[Age]"></td>
              </tr>
              <tr> 
                <td><font color="#000000">Gender:</font></td>
                <td> <label>
                          <input type="radio" name="Array[Gender]" value="1">
                        <font color="#000000">Male</font></label>
                        <input type="radio" name="Array[Gender]" value="2">
                        <font color="#000000">Female</font></label></td>
              </tr>
              <tr> 
                <td><font color="#000000">Height:</font></td>
                <td><font color="#000000">Feet<input size=10 type=text name="Array[HeightFeet]">
				Inches<input size=10 type="text" name="Array[HeightInches]"></font></td>
              </tr>
			  <tr> 
                <td><font color="#000000">Calculate BMI:</font></td>
                <td><input name="formbmi" type="submit" value="Get BMI"></td>
              </tr></form>
            </table></td>
          <td valign="top" bgcolor="#FFFFCC">
		  <iframe name="bmi" src="bmibodyfat.php" height="100%" width="100%">
		 </iframe>
		  </td>
        </tr>
      </table>

I hope this is enough info

Thanks

drew010

What I would do in that case is add a hidden form element like
<input type=hidden name=posted value=1>

Then when the form is submitted that value posted becomes true, so right above your iframe code i'd put:

jsantama

Drew010,

Thanks for the prompt replies. I tried your code, but know my iframe shows an error:

Notice: Undefined variable: posted in c:\inetpub\wwwroot\test\cus.php on line 270

Line 270 is the line commented out:

//Beginning of Form
<table width="100%" border="0" cellspacing="0" cellpadding="0"><form action="bmibodyfat.php" method="GET" target="bmi">
//End of Form
</tr>
			  <tr> 
                <td><font color="#000000">Calculate BMI:</font></td>
                <td><input name="formbmi" type="submit" value="Get BMI"></td>
              </tr><input type=hidden name=posted value=1></form>
            </table></td>
          <td valign="top" bgcolor="#FFFFCC">
		  <?php 
			// This is line 270 if($posted) { 
			echo "<iframe name=\"bmi\" id=\"bmi\" src=\"bmibodyfat.php\" height=\"100%\" width=\"100%\">"; 
			echo "</iframe>"; 
			} 
			?>
		  </td>
        </tr>
      </table>

My page is html, and the only php code there is, is the one you gave me... the rest of the pages are php. I don't know if this is of any help.
Now, I "could" live with that Notice, but now, when I click on the submit button, it opens a new page, with the right info, but it won't refresh the iframe with the info. I don't want a new page... mmmhhhh... to early to be fighting with php, but oh well...
Thanks a lot...