// 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);
			}
		}
	}
	
}

function getText(el){
	var text = "";
	if(el != null){
		if(el. childNodes){
			for(var i = 0; i < el.childNodes.length; i++){
				var childNode = el.childNodes[i];
				if(childNode.nodeValue != null){
					text = text + childNode.nodeValue;
				}
				
			}
		}
	}
	return text;
}