Best way to trigger a js function ?

My client would like a pop-up window to appear when a member logs in, if there are any messages or other outstanding info which has appeared since they last logged in.

I am recording when members log in and out, so that is ok, so what I want to do is call a js openwindow() function if, for example, the messages recordset contains any rows

I can do this easily enough with a button ‘on click’ event, but can’t work out how to do it if there isn’t a button or some other interaction

I don’t want to call the function on load, but only if the recordset is not empty

without any other interaction, the only way to accomplish this is using the onload method.

you could use a php if statement around the onload call so it only occurs if the recordset is not empty:

<?php if ($totalRows_recordsetName > 0) { ?>onLoad="callFunction(parameters)"<?php } ?>

Thanks Jason, putting the call within a php block did it for me.

I set up a jquery call and for now, I set it to only open the popup if a member is logged in. so having set a default value for the MemberID of 0 if not set..

<?php if ($_SESSION["MemberID"] != 0) { //trigger popup window if a member is logged in?>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
 window.document.body.onload = openWindow;
});
</script>
<?php } ?>

I will add other parameters later so the member can disable the popup for the session and popup will only fire if recordset has a rowcount of > 0