function testMap()
{
    document.getElementById("jstestcontainer"),innerHTML = '';
    var o = {};
    var map = [];
    var sum = 0;
    for (var i=0; i<10; i++)
    {
	var start = new Date().getTime();

	for (var j=0; j<100000; j++)
	{
		var key = "k" + i + "_" + j;
		map[key] = o;
		map[key];
	}
	var end =  new Date().getTime() - start;
	sum += end;
        addTestData(end + " ms " + j + " objs");
	map = [];
    }
    addTestData(sum + "ms, avg: " + (sum / 10.0) + " ms");
}

function addTestData( str ){  
	document.getElementById("jstestcontainer").innerHTML += "<div>" + str + "</div>"; 
}