function  addEvent(object, event_type, func)
{
	try
	{
		object.addEventListener(event_type, func, true); 
	}
	catch(error)
	{
		return object.attachEvent("on"+event_type, func);
	}
}

function i_hate_spam()
{
	a_tags=document.getElementsByTagName('a');
	
	for (i=0; i<a_tags.length; i++)
	{
		a_tags[i].href=a_tags[i].href.replace('[kukac]', '@');
    	a_tags[i].href=a_tags[i].href.replace('[pont]', '.');
	}
}

function top_right_corner()
{
	document.getElementById('main_menu_last').onmouseover=function ()
	{
		document.getElementById('top_right_corner').className='top_right_corner_hover';
	}
	
	document.getElementById('main_menu_last').onmouseout=function ()
	{
		document.getElementById('top_right_corner').className='top_right_corner';
	}
}

addEvent(window, 'load', i_hate_spam); 
addEvent(window, 'load', top_right_corner);