function showSub (layerID)
{
	var elementID = document.getElementById(layerID);
	
	elementID.style.display='block';
}

function hideSub (layerID)
{
	var elementID = document.getElementById(layerID);
	
	elementID.style.display='none';
}

function checkSub()
{
	var elementID = document.getElementById('sid');
	
	if (elementID.disabled == true)
	{
		elementID.disabled = false;
	}
	else
	{
		elementID.disabled = true;
	}
}

function getState()
{ 
    var s = document.getElementById('submenu').selectedIndex; 
    
    if (s == 0)
    { 
    	alert('Nul');
        document.getElementById('sid').disabled = true; 
    } 
    else 
    { 
    	alert('Ja');
        document.getElementById('sid').disabled = true; 
    } 
} 

function setMaxLength() {
	var x = document.getElementsByTagName('textarea');
	var counter = document.createElement('div');
	counter.className = 'counter';
	for (var i=0;i<x.length;i++) {
		if (x[i].getAttribute('maxlength')) {
			var counterClone = counter.cloneNode(true);
			counterClone.relatedElement = x[i];
			counterClone.innerHTML = '<span>0</span>/'+x[i].getAttribute('maxlength');
			x[i].parentNode.insertBefore(counterClone,x[i].nextSibling);
			x[i].relatedElement = counterClone.getElementsByTagName('span')[0];

			x[i].onkeyup = x[i].onchange = checkMaxLength;
			x[i].onkeyup();
		}
	}
}

function checkMaxLength() {
	var maxLength = this.getAttribute('maxlength');
	var currentLength = this.value.length;
	if (currentLength > maxLength)
		this.relatedElement.className = 'toomuch';
	else
		this.relatedElement.className = '';
	this.relatedElement.firstChild.nodeValue = currentLength;
	// not innerHTML
}