tjek om scoll er på side eller ikke

Du kan sammenligne højden af body med størrelsen af browseren.

okay nu er jeg ikke den store javascript nørd.. hvordan gøre jeg lige det?

Har prøvet dette af men det virker ikke... den skrive samme højde lige meget hvad
<!--

var viewportwidth;
var viewportheight;

// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

if (typeof window.innerWidth != 'undefined')
{
      viewportwidth = window.innerWidth,
      viewportheight = window.innerHeight
}

// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

else if (typeof document.documentElement != 'undefined'
    && typeof document.documentElement.clientWidth !=
    'undefined' && document.documentElement.clientWidth != 0)
{
      viewportwidth = document.documentElement.clientWidth,
      viewportheight = document.documentElement.clientHeight
}

// older versions of IE

else
{
      viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
      viewportheight = document.getElementsByTagName('body')[0].clientHeight
}
alert('<p>Your viewport width is '+viewportwidth+'x'+viewportheight+'</p>');
//-->

<!--                              Hide from non-JS browsers
    var scnWid,scnHei;
    if (self.innerHeight) // all except Explorer
    {
        scnWid = self.innerWidth;
        scnHei = self.innerHeight;
    }
    else if (document.documentElement && document.documentElement.clientHeight)
        // Explorer 6 Strict Mode
    {
        scnWid = document.documentElement.clientWidth;
        scnHei = document.documentElement.clientHeight;
    }
    else if (document.body) // other Explorers
    {
        scnWid = document.body.clientWidth;
        scnHei = document.body.clientHeight;
    }
alert('<p>Your inner width is '+scnWid+'x'+scnHei+'</p>');
// -->

<ole>

<script type="text/javascript">
window.onload = function(){
    var viewportwidth;
    var viewportheight;
   
    // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
   
    if (typeof window.innerWidth != 'undefined')
    {
          viewportwidth = window.innerWidth,
          viewportheight = window.innerHeight
    }
   
    // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
   
    else if (typeof document.documentElement != 'undefined'
        && typeof document.documentElement.clientWidth !=
        'undefined' && document.documentElement.clientWidth != 0)
    {
          viewportwidth = document.documentElement.clientWidth,
          viewportheight = document.documentElement.clientHeight
    }
   
    // older versions of IE
   
    else
    {
          viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
          viewportheight = document.getElementsByTagName('body')[0].clientHeight
    }
    alert('Your viewport is '+viewportwidth+'x'+viewportheight+' pixels');
   
    var sBodyWidth = document.body.offsetWidth;
    var sBodyHeight = document.body.offsetHeight;
   
    alert('Your body element is '+sBodyWidth+'x'+sBodyHeight+' pixels');   
}
</script>

/mvh
</bole>

okay det virkede smid et svar

*griiiiiiiiiiiiiiiiiiiiiib*  =)