function include(filename)
{
	var head = document.getElementsByTagName('head')[0];
	
	script = document.createElement('script');
	script.src = filename;
	script.type = 'text/javascript';
	
	head.appendChild(script)
}

function addEvent(elm, evType, fn, useCapture)
{
//Credit: Function written by Scott Andrews
//(slightly modified)

	var ret = 0;

	if (elm.addEventListener)
		ret = elm.addEventListener(evType, fn, useCapture);
	else if (elm.attachEvent)
		ret = elm.attachEvent('on' + evType, fn);
	else
		elm['on' + evType] = fn;

	return ret;
}