The task described below may take me days but for you it possibly takes only a few minutes. This is why I am coming to you.
There is a label on a webpage id="lblMessage"; upon click on two controls, the following function puts a message in it,
var msg1 = 'this is message 1';
var msg2 = 'this is message 2';
<add to lblMessage msg1 ;>
<add to lblMessage msg2 ;>
<the label to show the msg in a bright colored font and gradually die-out using opacity or something else>
Please make the font color and duration editable.
I am working in asp.net c#