// create element 'tag'
// add attributes from 'attr' array: [ [ 'attribute1', 'value1' ], [ 'attribute2', 'value2' ] ]
// add contents from 'content' array: [ 'a string', ELEMENT, 5 ]
// append it to 'owner' element
function createTag(tag, content, owner, attr) {
	var t = document.createElement(tag);
	if (attr instanceof Array)
		for (var z = 0; z < attr.length; z++)
			t.setAttribute(attr[z][0], attr[z][1]);
	if (content instanceof Array)
		for(var z = 0; z != content.length; z++)
			if (typeof(content[z]) == 'string' || typeof(content[z]) == 'number')
				t.appendChild(document.createTextNode(content[z]));
			else t.appendChild(content[z]);
	if (owner) owner.appendChild(t);
	return t;
}

// insert 'root' xml tree to 'where' element
function innerDOM(where, root) {
	for (var z = 0; z < root.childNodes.length; z++)
		where.appendChild(root.childNodes[z].cloneNode(true));

	var scripts = where.getElementsByTagName("script");
	for (v in scripts) {
		if (scripts[v].getAttribute('src'))
			createTag('script', null, document.getElementsByTagName("head")[0], [['type', 'text/javascript'], ['src', scripts[v].getAttribute('src')]]);
		else eval(scripts[v].text);
	}
}