C / C++ / MFC

//self defined data type:
	typedef  struct   
	{   
		CComBSTR s;   
		int		 n;
	}MyData;   


bool CWebPage::CallJScript(const CString strFunc,CComVariant* pVarResult)
{
	CComPtr<IDispatch> spScript;
	if(!GetJScript(spScript))
	{
		ShowError(_T("Cannot GetScript"));
		return false;
	}
	CComBSTR bstrMember(strFunc);
	DISPID dispid = NULL;
	HRESULT hr = spScript->GetIDsOfNames(IID_NULL,&bstrMember,1,
		LOCALE_SYSTEM_DEFAULT,&dispid);
	if(FAILED(hr))
	{
		ShowError(GetSystemErrorMessage(hr));
		return false;
	}


	DISPPARAMS dispparams;
	memset(&dispparams, 0, sizeof dispparams);
	dispparams.cArgs = 1;
	dispparams.rgvarg = new VARIANT[dispparams.cArgs];

	SAFEARRAY *psaData = NULL;	
	SAFEARRAYBOUND saBound = {1,0};

	MyData *pMyData = NULL;

	psaData = SafeArrayCreate(VT_VARIANT,1,&saBound);
	SafeArrayAccessData(psaData,reinterpret_cast<void **>(&pMyData));
	pMyData[0].s = SysAllocString(L"Steve");
	pMyData[0].n = 8;
	SafeArrayUnaccessData(psaData);

	dispparams.rgvarg[0].parray = psaData;
	dispparams.rgvarg[0].vt = VT_ARRAY;
	dispparams.cNamedArgs = 0;

	EXCEPINFO excepInfo;
	memset(&excepInfo, 0, sizeof excepInfo);
	CComVariant vaResult;
	UINT nArgErr = (UINT)-1;  // initialize to invalid arg

	hr = spScript->Invoke(dispid,IID_NULL,0,
		DISPATCH_METHOD,&dispparams,&vaResult,&excepInfo,&nArgErr);

	delete [] dispparams.rgvarg;
	if(FAILED(hr))
	{
		ShowError(GetSystemErrorMessage(hr));//errormsg "incorrect variable type"
		return false;
	}

	if(pVarResult)
	{
		*pVarResult = vaResult;
	}
	return true;
}

//javaScript code
<script type="text/javascript">
		var obj = {
		string: "sss",
		ints: 123
		}
			function showMessage(obj){
				alert(obj.string);
				alert(obj.ints);
			}
		</script>