function PopPrinterVenlig(MinURL) {
	window.open(MinURL,'popup','height=500,width=800,scrollbars=yes');
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function HideShow(id)
{
	if (document.getElementById(id).style.display == "none")
	{
		document.getElementById(id).style.display = ""
		createCookie(id,"true",360);
	}
	else
	{
		document.getElementById(id).style.display = "none"
		eraseCookie(id);
	}
}

function OpenAll()
{
	document.getElementById('videnbase').style.display = ""
//	document.getElementById('multimedie').style.display = ""
	document.getElementById('hovedside').style.display = ""
	createCookie('videnbase',"true",360);	
//	createCookie('multimedie',"true",360);	
	createCookie('hovedside',"true",360);
}

function CloseAll()
{
	document.getElementById('videnbase').style.display = "none"
//	document.getElementById('multimedie').style.display = "none"
	document.getElementById('hovedside').style.display = "none"
	eraseCookie('videnbase')
//	eraseCookie('multimedie')
	eraseCookie('hovedside')
	
}

function Initialize()
{
	if (readCookie('videnbase') == "true")
		document.getElementById('videnbase').style.display = "";
	if (readCookie('multimedie') == "true")
		document.getElementById('multimedie').style.display = "";
	if (readCookie('hovedside') == "true")
		document.getElementById('hovedside').style.display = "";
	
	if (document.getElementById('kat1') != null)
	{
		if (readCookie('kat1') == "true")
			document.getElementById('kat1').style.display = "";
		if (readCookie('kat2') == "true")
			document.getElementById('kat2').style.display = "";
	}
	
	//ShowPage(1)

}

function GoBack()
{
	if (document.getElementById("aktuelside").value > 1)
		ShowPage(eval(document.getElementById("aktuelside").value)-1);
	else
		alert('Du er på første side')

}

function GoForward()
{
	if (document.getElementById("aktuelside").value < Math.ceil(document.getElementById("artikelantal").value/articleCount))
		ShowPage(eval(document.getElementById("aktuelside").value)+1);
	else
		alert('Du er på sidste side')
}

function ShowPage(nr)
{
	pager = articleCount
	for (j=1; j<=document.getElementById("artikelantal").value; j++)
	{
	    if (j > pager*nr || j < pager * (nr-1) + 1) 
			document.getElementById("a_nr_" + j).style.display = "none";
		else
			document.getElementById("a_nr_" + j).style.display = "block";
	}
	document.getElementById("aktuelside").value = nr;
	
	if (document.getElementById("aktuelside").value < 2)
	{
		tilbageknap.style.display = "none";
		tilbageknaptop.style.display = "none";
	}
	else
	{
		tilbageknap.style.display = "";
		tilbageknaptop.style.display = "";
	}
	
	if (document.getElementById("aktuelside").value < Math.ceil(document.getElementById("artikelantal").value/articleCount))
	{
		fremknap.style.display = "";
		fremknaptop.style.display = "";
	}
	else
	{
		fremknap.style.display = "none";
		fremknaptop.style.display = "none";
	}
		
}