要浏览svg需要安装svgviewer之类的东西。请问，这个插件能否自动提醒安装

<script language=javascript>
var hasSVGSupport = false;
var useVBMothod = false;
if ((navigator.mimeTypes != null) && (navigator.mimeTypes.length > 0))
{
    if ( (navigator.mimeTypes["image/svg"]&&navigator.mimeTypes["image/svg"].enabledPlugin!=null)||
       (navigator.mimeTypes["image/svg-xml"]&&navigator.mimeTypes["image/svg-xml"].enabledPlugin!=null)
       (navigator.mimeTypes["image/svg+xml"]&&navigator.mimeTypes["image/svg+xml"].enabledPlugin!=null) )
    {
        hasSVGSupport = true;
    }
}
else
{
    useVBMothod = true;
}

</script>

<script language=vbscript>
on error resume next
If useVBMothod Then
    hasSVGSupport = IsObject(CreateObject("Adobe.SVGCtl"))
End If
</script>

（其中ie浏览器要vbscript通过那段代码来判断）