The lookup field is rendered in a DVWP with the following onclick action:
OpenPopUpPage( 'http://blah/_layouts/listform.aspx?PageType=4&ListId={FFFC7FEA-62B2-459F-9D1B-80B6CA3608FF}&ID=23&RootFolder=*', RefreshPage);
The XSL (in the DVWP) that is rendering this lookup value is as follows:
[An aside: "table-based HTML?" you may ask. Well, sometimes expedience wins over web standards, though I am usually a standards-based advocate!]
The jQuery script to extract and use the item ID is:
$(function() {
$('.linktoentitydetails').each(function() {
var $link = $(this).find('a');
var href = $link.attr('href');
if (href != '') {
var itemIdMatches = href.match(/.*&id=(\d+)&.+/i)
if (itemIdMatches.length == 2) {
var itemId = itemIdMatches[1];
$link.removeAttr('onclick');
$link.attr('href', 'persondetails.aspx?eid=' + itemId);
}
}
});
});
So, in this case, I am replacing the OpenPopUpPage hyperlink action with a simple link to a custom page (persondetails.aspx) on which I can present other information about this linked item.
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