function startskyscrapper(){
	showonscrollvar=setInterval("scrollskyscrapper()", 50)
}

function scrollskyscrapper(){
var ie=document.all && !window.opera
var dom=document.getElementById

objref=(dom)? document.getElementById("skyscrapper") : document.all.skyscrapper
iebody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
docheight=(ie)? iebody.clientHeight: window.innerHeight
objheight=objref.offsetHeight

var ie=document.all && !window.opera
var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
objref.style.top=scroll_top+docheight/2-objheight/2+"px"
}

if (window.addEventListener)
window.addEventListener("load", startskyscrapper, false)
else if (window.attachEvent)
window.attachEvent("onload", startskyscrapper)
else if (document.getElementById)
window.onload=startskyscrapper


function toggledisplay (id){
  if (document.getElementById) {
    var mydiv = document.getElementById(id);
    if (mydiv.style.display == 'none')
    {
      mydiv.style.display =  'block';
    }
    else
    {
      mydiv.style.display =  'none';
    }
  }
}

/* text aus vorausgefüllten formularfeldern entfernen */
function removeDefaultValue(field) {
	if (!field.defaultValue) {
		field.defaultValue = field.value;
	}
	if(field.value == field.defaultValue) {
		field.value = '';
	}
}

function setDefaultValue(field) {
	if(field.value == '') {
		field.value = field.defaultValue;
	}
}



/*
	Bookmark
*/

function user_bookmark(page_title, page_url)
{
	if (window.sidebar)
	{
		// Firefox
		window.sidebar.addPanel(page_title, page_url, "");
	}
	else if (window.opera && window.print)
	{
		// Opera
		var elem = document.createElement('a');
		elem.setAttribute('href',page_url);
		elem.setAttribute('title',page_title);
		elem.setAttribute('rel','sidebar');
		elem.click();
	} 
	else if (document.all)
	{
		// IE
		window.external.AddFavorite(page_url, page_title);
	}
	else
	{
		// Otherwise!
		alert("Sorry, dein Browser konnte nicht erkannt werden und nicht automatisch ein Bookmark gesetzt werden");
	}
}

function user_printpage(article_id)
{
	window.open('index_print.asp?f=content_detail&CID='+article_id+'&print=yes','','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=600,height=400');
}