How to clear custom field when using 'Create another' option

[Paddy Byrne]

Hi,

I realise literally hundreds of people asked for custom fields to behave exctly as they currently do when using the 'Create another' option in the create issue dialog window (the values persist), but ironically I have a customer who wants to clear the current selections when they click the 'Create' button on the bottom right of the window.

I've been trying to do this with JavaScript, but it does not work using the 'onsubmit' function. I have tested the basic code by temporarily using onclick, and it does clear the custom field. Obviously that's a bit useless as I want the selections submitted the first time... Here is what I have so far  - any suggestions ? 

<script type="text/javascript">
target = document.getElementById("customfield_10500");
function clear()
{
target.value = "";
}
var create = document.getElementById("create-issue-submit");
create.onclick=clear; // I need something like send my CF values now, and then onsubmit complete =clear
</script>

[Paddy Byrne]

I have tried with with  some time-delayed JavaScript, but does't work either 

<script type="text/javascript">
var createForm = document.getElementById("create-issue-submit");
createForm.onclick=timeout_init;
function timeout_init() {
    setTimeout('timeout_action()', 2000);
	//document.getElementById("customfield_10500").value = '';
    //This will clear field, but don't want to clear at this instant....	
}
function timeout_action() {
    window.alert('I waited this long');	
    document.getElementById("customfield_10500").value = '';
	// alert is shown after 2 seconds, but value does not clear
}
</script>

I wonder (when using Create another option ) is the create issue screen for the first issue created actually closing, and a new version of it is being displayed, quicker than I can observe, for the second and subsequent issues? maybe my clear command looses context or reference to the original object its trying to work on...