/* addLoadEvent 
Hat tip to http://simon.incutio.com/archive/2004/05/26/addLoadEvent

Sample uses
-----------
addLoadEvent(nameOfSomeFunctionToRunOnPageLoad);
addLoadEvent(function() 
{
  more code to run on page load
});
*/
function addLoadEvent(func) 
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function') 
	{
		window.onload = func;
	} 
	else 
	{
		window.onload = function() 
		{
			if (oldonload) 
			{
				oldonload();
			}
			func();
		}
	}
}

/* Textarea Max Length */
function setMaxLength() {
	var W3CDOM = document.createElement && document.getElementsByTagName;
	if (!W3CDOM) return;
	var textareas = document.getElementsByTagName('textarea');
	var counter = document.createElement('div');
	counter.className = 'counter';
	for (var i=0;i<textareas.length;i++) {
		if (textareas[i].getAttribute('maxlength')) {
			var counterClone = counter.cloneNode(true);
			counterClone.innerHTML = '<span>0</span>/'+textareas[i].getAttribute('maxlength');
			textareas[i].parentNode.insertBefore(counterClone,textareas[i].nextSibling);
			textareas[i].relatedElement = counterClone.getElementsByTagName('span')[0];
			textareas[i].onkeyup = textareas[i].onchange = checkMaxLength;
			textareas[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;
}