Question

I have a form in a JSP as follows:

<form action = "<c:url value = '/displayVisualisation' />" 
    title = "${item.visDescription}" 
    method = "post" onClick = "return confirmRequest('Do you want to change  to
        another visualisation type?');">                       
    <input class = "text" type = "text" value = "${item.visTypeName}"> 

</form>  

Which calls a Javascript method as follows:

function confirmRequest(questionText) {
    var confirmRequest = confirm(questionText);   
    if (confirmRequest) {
        return true;
    }

    else {
        return false;
    }                    
}

To ask the user for a reply to the question asked. However, the confirm prompt appears but does not perform the displayVisualisation action!

Can anyone suggest why or help me implement this correctly?

In other examples, where the action is triggered by clicking a graphic, all is well.

Answer 1

Since you are using onclick, return true; in your confirmRequest function is simply allowing the rest of the clickHandler chain to be executed. I think you also need to explicitly submit the form at this time, in the true case.

Here is one way to do that, using only javascript:

function confirmRequest(questionText) {
  var confirmRequest = confirm(questionText);   
  if (confirmRequest) {
     document.forms[0].submit();
     return true;
  }
  else {
      return false;
  }
}