Right Click On Div

Take a look at this: Javascript - Event properties[^].
Value for right mouse button is 2, although note that it recommends using mousedown or mouseup events rather than click.

Here is a sample from the page showing right click detection:

function doSomething(e) { 
    var rightclick; 
    if (!e) var e = window.event; 
    if (e.which) rightclick = (e.which == 3); 
    else if (e.button) rightclick = (e.button == 2); 
    alert('Rightclick: ' + rightclick); // true or false 
} 

Attach method like this to div and inplace of alert call your function1()