function writeMenu()
{
	document.writeln('<span id=menu1 style="display:none;">');
	document.writeln('<table class=menu><tr><td>');
	document.writeln('<a href="planter.html" class=menulnk>Planter</a><br>');
	document.writeln('<a href="hegnsplantning.html" class=menulnk>&nbsp;&nbsp;Hegnsplantning</a><br>');	
	document.writeln('<a href="skovplantning.html" class=menulnk>&nbsp;&nbsp;Skovplantning</a><br>');
	document.writeln('<a href="masurbirk.html" class=menulnk>&nbsp;&nbsp;&nbsp;&nbsp;Masurbirk</a><br>');
	document.writeln('<a href="fugleoje.html" class=menulnk>&nbsp;&nbsp;&nbsp;&nbsp;Fugle&oslash;je</a><br>');
        document.writeln('<a href="vimmerved.html" class=menulnk>&nbsp;&nbsp;&nbsp;&nbsp;Vimmerved</a><br>');
	document.writeln('<a href="podning.html" class=menulnk>&nbsp;&nbsp;Podning</a><br>');
	document.writeln('</td></tr></table>');
	document.writeln('</span>');
	document.writeln('');
	document.writeln('<span id=menu2 style="display:none;">');
	document.writeln('<table class=menu><tr><td>');
	document.writeln('<a href="maskin.html" class=menulnk>Entrepren&oslash;rarbejde</a><br>');
	document.writeln('<a href="brdrhojrup.html" class=menulnk>Hegnsklipning</a><br>');
	document.writeln('<a href="brdrhojrup.html" class=menulnk>H&aelig;kklipning</a><br>');
	document.writeln('<a href="brdrhojrup.html" class=menulnk>Grenknusning</a><br>');
	document.writeln('<a href="brdrhojrup.html" class=menulnk>Rabatklipning</a><br>');
	document.writeln('<a href="brdrhojrup.html" class=menulnk>P&aelig;leboring</a><br>');
	document.writeln('<a href="basamid.html" class=menulnk>Jorddesinfektion</a><br>');
	document.writeln('<a href="slibning.html" class=menulnk>Slibing</a><br>');
	document.writeln('<a href="fraesning.html" class=menulnk>Fręsning</a><br>');
	document.writeln('</td></tr></table>');
	document.writeln('</span>');
}

var nrOfMenus=2;
function DoBox(name)
{
	var shouldClose = 0;
	m_box = findDOM(name,1);
	if (m_box.display == "") {
		m_box.display = "none";
		return;
	}
	for (i = 0; i < nrOfMenus; i++)
	{	
		var x = i+1;
		temp = "menu" + x.toString(10);
		m_box = findDOM(temp,1);
		m_box.display = "none";
	}
	m_box = findDOM(name,1);
	m_box.display = "";
}

function UpdateMenu()
{
	m_menu1 = findDOM("menu1",1);
	m_menu2 = findDOM("menu2",1);
	m_width = document.body.offsetWidth;
	m_menu1.left = ((m_width - 750) >> 1);
	m_menu2.left = ((m_width - 750) >> 1) + 208;
}

function ChangePic(name,file)
{
	m_name = findDOM(name,0);
	m_name.src = file;
}
setBgImg();

function setBgImg(){
    var m_date = new Date();
    var m_week = getWeek(m_date.getFullYear(),m_date.getMonth(),m_date.getDate());
    document.write("<style type='text/css'>\nbody {background-image: url(baggrund/uge" + m_week + ".jpg);}\n</style>"); }

function getWeek(year,month,day){
    //lets calc weeknumber the cruel and hard way :D
    //Find JulianDay 
    month += 1; //use 1-12
    var a = Math.floor((14-(month))/12);
    var y = year+4800-a;
    var m = (month)+(12*a)-3;
    var jd = day + Math.floor(((153*m)+2)/5) + 
                 (365*y) + Math.floor(y/4) - Math.floor(y/100) + 
                 Math.floor(y/400) - 32045;      // (gregorian calendar)
    //var jd = (day+1)+Math.Round(((153*m)+2)/5)+(365+y) + 
    //                 Math.round(y/4)-32083;    // (julian calendar)
    
    //now calc weeknumber according to JD
    var d4 = (jd+31741-(jd%7))%146097%36524%1461;
    var L = Math.floor(d4/1460);
    var d1 = ((d4-L)%365)+L;
    NumberOfWeek = Math.floor(d1/7) + 1;
    return NumberOfWeek;        
}