I cannot submit the form

[milily]

Hi,

I have a group of radio buttons. If none of the radio button was checked, pop up an alert window. Otherwise submit the form. But the form cannot be submitted. I checked for a long time and still don't know why it doesn't work. I copied the code as follows. Thank you for your help.

Helen

Code: Select all

<script language="javascript">
<!--

function checkStatus(buttonGroup) {
   var j = checkRadioButton(buttonGroup);
   if ( j == 1){
      document.showStudentData.submit();
//[color=red]doesn't work[/color]
   }
   else {
      alert("Please choose a student to edit");
//[color=red]works well  [/color]
   }
}

function checkRadioButton (radioGroup){
   if (radioGroup[0]) { // if the button group is an array
      for (var i=0; i<radioGroup.length; i++) {
         if (radioGroup[i].checked) {
            return 1
         }
      }
   }
   else {
      if (radio.checked) { return 1; } // if one button is checked, return 1
}
   // no radio button is selected
   return -1;
} // Ends the "checkRadioButton" function


-->
</script>
...
<form name = "showStudentData">
...
echo "<center><input type=\"button\" name=\"submit\" value=\"Edit\" onClick='checkStatus(radio)'></center>";//[color=red]php [/color]code
...
</form>

[swirlee]

Your form doesn't have an action (e.g. <form action="script.php">), so it doesn't have anywhere to submit to.

[milily]

It has. I just forgot to type it here. Sorry.

It is:
<form name="showStudentData" method ="post" action="editStd.php">

[milily]

Hi,

I found the solution! Just change the button's name!

echo "<center><input type=\"button\" name=\"submit\" value=\"Edit\" onClick='checkStatus(radio)'></center

Change the button's name to anything else instead of 'submit' and it works.

Helen