function visSkjul(elId) {
	o = document.getElementById(elId);
	if(o != null) {
		if(o.style.display  == 'block') 
			o.style.display = 'none';
		else
			o.style.display = 'block';
	}
}
function visOmSkjult(elId) {
	o = document.getElementById(elId);
	if(o != null) {
		o.style.display = 'block';
	}
}
function skjul(elId) {
	o = document.getElementById(elId);
	if(o != null) {
		o.style.display = 'none';
	}
	
}
function expand(elId, linkId) {
	var element = document.getElementById(elId);
	var link = document.getElementById(linkId);
	if(element != null) {
		if(element.style.display  == 'block') { 
			var plussTekst = document.createTextNode("[+]");
			link.replaceChild(plussTekst, link.firstChild);
			element.style.display = 'none';
		}
		else {
			var minusTekst = document.createTextNode("[-]");
			link.replaceChild(minusTekst, link.firstChild);
			element.style.display = 'block'; 
		}
	}
}
function showDialogPoupup(href, height, width) {
	var windowOptions = "menubar=no,status=no,toolbar=no,location=no,dialog=yes,modal=yes,titlebar=no,scrollbars=yes";
	if(height != null) {
		windowOptions = windowOptions + ",height=" + height;
	}
	else {
		windowOptions = windowOptions + ",height=600";
	}
	if(width != null) {
		windowOptions = windowOptions + ",width=" + height;
	}
	else {
		windowOptions = windowOptions + ",width=800";
	}
	window.open(href, "dialogPopup", windowOptions);
	
	
}