[ruslan_mart]

var container = document.getElementById('container');
	var div = document.getElementsByClassName('circle');
    
    function removeDiv() {
    	container.removeChild(this);
    };

 	// add div in container
	var addNode = function() {
		div = document.createElement('div');
			div.className = 'circle';
        div.onclick = removeDiv;
		container.appendChild(div); // insert div
	};

	// how much? 100
	for(var i = 0; i < 100; i++) {
		addNode();
	}   


	var removeNode = function() {
		container.removeChild(container.lastChild); // remove div

	};