function moveArrow()
{
    if( document.getElementById('showArrow') != null )
    {
        if( document.getElementById('year_arrow') != null && document.getElementById('parts_model') != null )
        {
            document.getElementById('year_arrow').style.display='inline';
            document.getElementById('make_arrow').style.display='none';
            document.getElementById('model_arrow').style.display='none';
            document.getElementById('parts_arrow').style.display='none';
            document.getElementById('zip_arrow').style.display='none';

            if( document.getElementById('parts_year').value == 0 )
            {
                document.getElementById('year_arrow').style.display='inline';
            }
            else if( document.getElementById('parts_make').value === "" )
            {
                document.getElementById('make_arrow').style.display='inline';
            }
            else if( document.getElementById('parts_model').value === "" )
            {
                document.getElementById('model_arrow').style.display='inline';
            }
            else if( document.getElementById('parts1').value === "" )
            {
                document.getElementById('parts_arrow').style.display='inline';
            }
            else
            {
                document.getElementById('zip_arrow').style.display='inline';
            }
        }
    }
}