private static int Js_indexOf(string target, object[] args)
{
string search = ScriptRuntime.ToString(args, 0);
double begin = ScriptRuntime.ToInteger(args, 1);
if (begin > target.Length)
{
return -1;
}
else
{
if (begin < 0)
{
begin = 0;
}
return target.IndexOf(search, (int)begin);
}
}