/*
 * Event handler to execute after page has loaded
 *
 * @param func - Function to execute once the page has loaded 
 */
function addLoadEvent(func)
{
	// Store existing onload event
	var oldonload = window.onload;
	// Assign function parameter to onload event if none exists
	if (typeof window.onload != 'function') {
		window.onload = func;
	// Create new function to call existing and new function
	} else {
		window.onload = function()
		{
			if (oldonload) {
				oldonload();
			}
			func();
		} // function()
	} // if/else
} // addLoadEvent

/*
 * Reload CAPTCHA image
 */
function reloadCaptcha()
{
	var imgSrc = document.getElementById('captcha').src + '?randomnumber='+Date();
	document.getElementById('captcha').src = imgSrc;
	document.getElementById('verifytext').value = '';
} // reloadCaptcha