window.onerror = null;
var newPopUpWindow = null;

function openPopUpWindow(popUpWindowPath, popUpWindowName, popUpWindowProperties) {   
	if (popUpWindowName=="AddImage") {
		if (!(isNull(newPopUpWindow))) 
		{
			if (newPopUpWindow) if (!newPopUpWindow.closed) newPopUpWindow.close();      
		}
	}
	newPopUpWindow = window.open(popUpWindowPath, popUpWindowName, popUpWindowProperties);
	newPopUpWindow.focus();
}