function changeLanguage(lang)
{
	var url = window.location.toString();
	var re = new RegExp("&lang=\\D\\D", "g");
	window.location = url.replace(re,"") + "&lang=" + lang;
}

function setMainPageTitle(title)
{
	try
	{
		parent.document.title = title;
	}
	catch(err)
	{

	}
}

function confirmLink(url,text)
{
	if(confirm(text))
		document.location = url;
}