ECMA Scritp for DeleteList

var clientContext = null;
var web = null;
ExecuteOrDelayUntilScriptLoaded(Initialize, "sp.js");
function Initialize()
{
clientContext = new SP.ClientContext.get_current();
web = clientContext.get_web();
this.list = web.get_lists().getByTitle('My custom generic list');
list.deleteObject();

clientContext.executeQueryAsync(Function.createDelegate(this, this.onListDeleteSuccess),

Function.createDelegate(this, this.onQueryFailed));
}
function onListDeleteSuccess(sender, args) {
alert("list deleted");
}

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