try
{
	function over(img, suffix)
	{
		if(img.nodeName.toLowerCase() == 'img' && img.src)
		{
			img.src = img.src.replace(/\.([a-z]{3,4})$/i, '_' + (suffix || 'over') + '.$1');
		}
	}

	function out(img, suffix)
	{
		if(img.nodeName.toLowerCase() == 'img' && img.src)
		{
			img.src = img.src.replace(new RegExp('_' + (suffix || 'over') + '\.([a-z]{3,4})$', 'i'), '.$1');
		}
	}
}
catch(e) {
	alert('Your browser is not compatible with this site. Please upgrade it.');
}