function getElementsByClassName(className,tag,elm)
{
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++)
	{
		current = elements[i];
		if(testClass.test(current.className))
		{
			returnElements.push(current);
		}
	}
	return returnElements;
}

function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	}
	else
	{
		window.onload = function()
		{
			oldonload();
			func();
		}
	}
}

function display_newsletter()
{
	document.getElementById('nyhedsbrev').style.display = 'block';
}

function popup(url,width,height) 
{
	var Win = window.open(url,'popup','width='+ width +',height='+ height +',left=200,top=200,resizable=no,scrollbars=no,menubar=no,status=no');
}
function change_bg_class (l) 
{
	if (l.className == 'bg_grey') {
		l.className = 'bg_none';
	} else {
		l.className = 'bg_grey';
	}
}