// used for IEPNGFIX
if (typeof blankImg == 'undefined') var blankImg = '/_templates/js/iepngfix/blank.gif';

// calculates page rendering time
function plJSRenderingTime()
{
	if (document.getElementById("plJSRenderingTime") != null) {
		var renderingTime = new Date().getTime() - plStartTime;
		document.getElementById("plJSRenderingTime").innerHTML = "Rendering time: "+renderingTime+" ms<br />";
		document.getElementById("plJSRenderingTime").style.display = "block";
	}
}

// add multiple onLoad-Events
function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
			func();
		}
	}
}