function highlight_message()
{
	var id="flashMessage";
	var elemento=document.getElementById(id);
	if (elemento.innerHTML.length>0)
	{
		new Effect.Highlight(id,{startcolor:'#ffcc00', endcolor:'#ffff99', restorecolor:'#ffffcc'});
	}
	Event.stopObserving(window, 'load', highlight_message);
}
Event.observe(window, 'load', highlight_message, false);

//please use better handler attachment than this:
//window.onload = init_uploader;