I've got a form with an onsubmit attribute like this (which I can't change):
<form onsubmit="return validate(this);">
I want to run another function, that needs to look at the return result of validate() and then possibly return false to prevent the form submitting.
Edit:
The contents of onsubmit="" could change, so I can't just write that code inside my own function.
You could replace the validate function with your own with something like this:
var oldValidate = validate;
var validate = function(form) {
var value = oldValidate(form);
//do your stuff here.
}
Came up with the following while writing the question, but I'm open to a better way:
// Grab the old function and remove it from the form
var oldSubmit = $('form').get(0).onsubmit;
$('form').get(0).onsubmit = null;
$('form').submit(function()
{
// Use .call to make sure "this" is correct when the old function is run
if (!oldSubmit.call($(this).get(0)))
return false;
// Do stuff
return false;
});
