function AddFunctionToInitPage(fct)
{
	if(window.attachEvent)
	{	// IE
		window.attachEvent('onload',fct);
	} else 
	if (window.addEventListener)
	{	// Firefox
		window.addEventListener('load',fct,false);
	}
}

function RemoveFunctionToInitPage(fct)
{
	if(window.attachEvent)
	{	// IE
		window.attachEvent('onunload',fct);
	} else 
	if (window.addEventListener)
	{	// Firefox
		window.addEventListener('unload',fct,false);
	}
}