Javascript: Changing the Onclick attribute

Mickah

Not sure if this can be done:

I want to change the onclick value of a link dynamically.

Basically, I've got a form that doesn't have a submit button but just plain link to the checkout.

If there are errors on the form, I disable the link (I've set the href to #, works) and change the onclick value of said link to alert("error message"); (doesn't work)

At the moment, I'm setting it like this:
document.getElementById("checkout_link").onclick = "whatever";

and it looks like it sets the value fine when I do a display :

document.getElementById("checkout_link").onclick

but when I click the link, no go!

Mickah

Just put javascript:alert('blah'); in for your href and forget about the onclick

That should do it Mickah

oneweb

While handy for usability (the user doesn't have to wait for the page to reload with an error message), it's important to note that Javascript can be disabled so you'll need to perform some server-side value checking too.

It is indeed possible to change the value onclick.

Put code along the lines of

if (valuesok){
document.location='linktocontinue'
} else {
alert('Following fields are invalid');
}

where valuesok is your form checking function.

HTH

Mickah

Yeah server side is covered, wouldn't use javascript at all if i could help it, but needs must.

i tried setting the onclick to the same value as the href, it displayed as set, but just doesn't work when i click the link!

odd

oneweb

Wanna PM me a link so I can try it?