function createTag(tagname, text, options) {
	var newTag = document.createElement(tagname);
	if (text != null) newTag.appendChild(document.createTextNode(text));
	for (var cnt in options) {
		newTag.setAttribute(cnt, options[cnt]);
	}
	return(newTag);
}

removeChildNodes = function(node) {
	if (node){
		if (!node.hasChildNodes()) { return; }
			while (node.childNodes.length > 0) {
			node.removeChild(node.childNodes[0]);
		}
	}
}