I was thinking about this one and came up with a purely client script solution which does not need an additional field on the table.
You can do it with 2 client scripts - one adds an img object to the Short description label and the other hides/displays it based on the contents of the field.
Here's the onLoad script to create the image object:
function onLoad() {
//add a UI Macro to a non-reference field
var field = document.getElementById('label.incident.short_description');
try {
//Create the image element and add to the DOM
var img=document.createElement('img');
img.id='openSolarWinds';
img.src='solarwinds.gifx';
img.alt='Open SolarWinds Link';
img.title='Open SolarWinds Link';
var link=document.createElement('a');
if (navigator.appName == 'Microsoft Internet Explorer'){
link.setAttribute('onclick', Function('openSolarWindsLink()'));
} else {
link.setAttribute('onclick', 'openSolarWindsLink()');
}
link.name='openSolarWindsLink';
link.id='openSolarWindsLink';
link.appendChild(img);
field.appendChild(link);
}
catch(e) {}
}
//onclick event to fire when the image is clicked
function openSolarWindsLink() {
var linkAt = g_form.getValue('short_description').toLowerCase().indexOf('url: /http://')
if (linkAt >= 0) {
var linkTo = g_form.getValue('short_description').indexOf(' at ');
var urlLink = g_form.getValue('short_description').substring(linkAt+5, linkTo);
window.open (urlLink);
}
}
And the onChange script (on the Short description field) to display/hide the image:
function onChange(control, oldValue, newValue, isLoading, isTemplate) {
if (newValue.toLowerCase().indexOf('url: /http://') >= 0) {
$('openSolarWindsLink').show();
} else {
$('openSolarWindsLink').hide();
}
}
The idea is based on an older SNCguru article that I've used in a couple scenarios (http://www.servicenowguru.com/system-ui/ui-macros/add-macro-non-reference-field/)
