Do like avatars of every vk user on search page

vklike.js

var l = document.getElementsByClassName('img'); for (var k in l) if (typeof(l[k].onmouseover) == 'function') l[k].onmouseover();
var els = document.getElementsByClassName('search_bigph');
var cur_els = 0;
setTimeout(next_cur_el, 5000);
function next_cur_el()
{
	if (typeof(els[cur_els]) == 'undefined') return;
	els[cur_els].click();
	var r1 = Math.random() * (3000 - 500) + 500;
	var r2 = Math.random() * (5000 - 2000) + 2000 + r1;
	setTimeout(next_do_like, r1);

	cur_els++;
	console.log('Item: '+cur_els);
	setTimeout(next_cur_el, r2);	
}
function next_do_like()
{
	var cs = window.getComputedStyle(document.getElementById('pv_like_icon'), null);
	if (typeof(cs.opacity) != 'undefined' && cs.opacity == '1')
	{
		console.log('Already');
	Photoview.hide(0);	
		return;
	}
	
	Photoview.like();
	Photoview.hide(0);	
	console.log('Clicked');
}
console.log('Total on page: '+els.length);