Question

Is this possible if I click on an anchor link to simulate as if I have pressed Ctrl+ keys on the keyboard (or equivalent on Mac)? if yes, could you show me how to do this, please?

something like

<a href="#" onclick="simulateCtrlKeyPlus();return false;">Ctrl+</a>

Answer 1

If you just want to simulate the behaviour of the CTRL+Mousewheel Zoom function, you can use CSS3-Transitions. A nice jQuery plugin for this is jquery Transit.

Example:

$('a.ctrlplus').click(function() {
  $('body').transition({ scale: ($('body').css('scale')+0.1) });
});

Don’t know if it works in all Browsers.