Trigger click with JavaScript in Safari 2015?

I am trying to trigger a click with JavaScript. I get it to work in all browsers but Safari.

I am using this code:

var t = document.getElementById('someidhere');
if (document.dispatchEvent) {
 var o = document.createEvent('MouseEvents');
 o.initMouseEvent('click', true, true, window, 1, 1, 1, 1, 1, false, false, false, false, 0, t);
 t.dispatchEvent(o)
} else if (document.fireEvent) {
 t.fireEvent('onclick');
} else if (t.click()) {
 t.click()
}

This code is taken from an other StackOverflow question, but it seems to be outdated?

via Chebli Mohamed