function go_back()
{
	history.back();
}

function set_focus()
{
	if (document.scantool.vin_error)
	{
		document.scantool.vin_error.focus();
	}
}

function restart()
{
	if (confirm("Are you sure you want to select new vehicle?"))
	{ 
		document.scantool.scantool_page.value="0";
		document.scantool.submit();
	}
}

function submit_form_dtc()
{
	if (sendForm()) document.scantool.submit();
}

function submit_form_make()
{
	document.scantool.global_make.value=document.scantool.vin_make.options[document.scantool.vin_make.selectedIndex].value;
	document.scantool.global_make_text.value=document.scantool.vin_make.options[document.scantool.vin_make.selectedIndex].text;
	if (sendForm()) document.scantool.submit();
}

function submit_form_year()
{
	document.scantool.global_year.value=document.scantool.vin_year.options[document.scantool.vin_year.selectedIndex].value;
	document.scantool.global_year_text.value=document.scantool.vin_year.options[document.scantool.vin_year.selectedIndex].text;
	if (sendForm()) document.scantool.submit();
}

function submit_form_model()
{
	document.scantool.global_model.value=document.scantool.vin_model.options[document.scantool.vin_model.selectedIndex].value;
	document.scantool.global_model_text.value=document.scantool.vin_model.options[document.scantool.vin_model.selectedIndex].text;
	if (sendForm()) document.scantool.submit();
}

function submit_form_engine()
{
	document.scantool.global_engine.value=document.scantool.vin_engine.options[document.scantool.vin_engine.selectedIndex].value;
	document.scantool.global_engine_text.value=document.scantool.vin_engine.options[document.scantool.vin_engine.selectedIndex].text;
	if (sendForm()) document.scantool.submit();
}

function submit_form_special()
{
	document.scantool.global_special.value=document.scantool.vin_special.options[document.scantool.vin_special.selectedIndex].value;
	document.scantool.global_special_text.value=document.scantool.vin_special.options[document.scantool.vin_special.selectedIndex].text;
	if (sendForm()) document.scantool.submit();
}