How to do "If Clicked Else .."

The way to do it would be with a boolean at a higher scope:

var hasBeenClicked = false;
jQuery('#id').click(function () {
    hasBeenClicked = true;
});

if (hasBeenClicked) {
    // The link has been clicked.
} else {
    // The link has not been clicked.
}

You should avoid using global vars, and prefer using .data()

So, you'd do:

jQuery('#id').click(function(){
  $(this).data('clicked', true);
});

Then, to check if it was clicked and perform an action:

if(jQuery('#id').data('clicked')) {
    //clicked element, do-some-stuff
} else {
    //run function2
}

Hope this helps. Cheers