Simulate Mouse Click

gistfile1.js

function simulateMouseClick(selector) {
    var targets = document.querySelectorAll(selector),
        evt = document.createEvent('MouseEvents'),
        i, len;
    evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
        
    for ( i = 0, len = targets.length; i < len; ++i ) {
        targets[i].dispatchEvent(evt);    
    }
}