ECMA Script CreateList

var clientContext = null;
var web = null;
ExecuteOrDelayUntilScriptLoaded(Initialize, "sp.js");
function Initialize()
{
clientContext = new SP.ClientContext.get_current();
web = clientContext.get_web();
var itemCreateInfo = new SP.ListItemCreationInformation();
var listCreationInfo = new SP.ListCreationInformation();
listCreationInfo.set_title('My Custom Generic List');
listCreationInfo.set_templateType(SP.ListTemplateType.genericList);
this.oList = web.get_lists().add(listCreationInfo);

clientContext.load(oList, 'Title', 'Id');

clientContext.executeQueryAsync(Function.createDelegate(this, this.onListCreateSuccess),
Function.createDelegate(this, this.onQueryFailed));
}
function onListCreateSuccess(sender, args) {
alert("List title : " + this.oList.get_title() + "; List ID : "+ this.oList.get_id());
}

function onQueryFailed(sender, args) {
alert('request failed ' + args.get_message() + '\n' + args.get_stackTrace());
}