/**
 * Fügt dem onload-Handler eine Funktion hinzu
 * 
 * This script and many more are available free online at
 * The JavaScript Source!! http://javascript.internet.com
 * Created by: Simon Willison | http://simon.incutio.com/
 * 
 * @param {Function} func zu ladende Funktion
 */
function addLoadEvent(func)
{
	var oldonload = window.onload;

	if (typeof window.onload != "function")
		window.onload = func;
	else {
		window.onload = function()
		{
			if (oldonload)
				oldonload();
			func();
		}
	}
}

/**
 * Fügt dem onresize-Handler eine Funktion hinzu
 * 
 * @param {Function} func zu ladende Funktion
 */
function addResizeEvent(func)
{
	var oldonresize = window.onresize;

	if (typeof window.onresize != "function")
		window.onresize = func;
	else {
		window.onresize = function()
		{
			if (oldonresize)
				oldonresize();
			func();
		}
	}
}