[FreeZon]

function getRandomColor()
{
	var ArrColor = ["#ea2121","#8e8e8e","#f9a60e","#18c55d","#4e64ff","#ad3b40"];
    alert(ArrColor.lenght); // Выводит undefined
    var i = Math.floor(Math.random()*ArrColor.lenght); 
    return ArrColor[i];
}
getRandomColor()