// JavaScript Document
function replaceText(el, text)
{
	if(el != null)
	{
		clearText(el);
		var newNode = document.createTextNode(text);
		el.appendChild(newNode);
	}
}

function clearText(el)
{
	if(el != null)
	{
		if(el.childNodes)
		{
			for(var i=0; i<el.childNodes.length; i++)
			{
				var childNode = el.childNodes[i];
				el.removeChild(childNode);
			}
		}
	}
}