So it did work. Yeah my DW - that usually posts on this account - will be happy.
So to get one to work, you need to put the following into the Signature for your profile:
<Script language='Javascript'>var rndNum = Math.floor(Math.random() * 10000);eval("var CDTDate" + rndNum + " = 'September 20,2002 6:00:00 PM EST';");document.writeln("<form name='CDTform" + rndNum + "' action='java script:void(0);'>");document.writeln('<font size=2 color=blue>Countdown to the Magic Kingdom!<img src="images/smilies/boldpurple.gif" border="0" alt=""><img src="images/smilies/sunny.gif" border="0" alt=""></font><br>');document.writeln("<input type=text value='' size=40 name='WrittenByJamesMVenglarikII'>");document.writeln("</form>");if (theFunction) theFunction += "var d = new Date();";else var theFunction = "var d = new Date();";theFunction += "var c = new Date('" + eval("CDTDate" + rndNum) + "');";theFunction += "var tzo = (c.getTimezoneOffset() - d.getTimezoneOffset()) * 60;";theFunction += "var diff = ((c - d)/1000) + tzo;";theFunction += "var days = Math.floor(diff / 86400);";theFunction += "var rem = diff - (days * 86400);";theFunction += "var hours = Math.floor(rem / 3600);";theFunction += "rem = rem - (hours * 3600);";theFunction += "var minutes = Math.floor(rem / 60);";theFunction += "rem = rem - (minutes * 60);";theFunction += "var seconds = Math.floor(rem);";theFunction += "if ((days < 0) | (hours < 0) | (minutes < 0) | (seconds < 0)) ";theFunction += "var out = 'I\\'m outta here!';";theFunction += "else ";theFunction += "var out = ' ' + days + ' days ' + hours + ' hrs. ' + minutes + ' mins. ' + seconds + ' secs.';";theFunction += "document.forms.CDTform" + rndNum + ".elements.WrittenByJamesMVenglarikII.value = out;";setInterval(theFunction, 1000);</Script>
Replace the date with the date and time you are leaving. You can also replace the message (Countdown to the Magic Kingdom!) with whatever you want and the images as well.
That will do it on any new posts. Pretty simple. Let me know if you have questions