function ChangeImage(id, url){
	document.getElementById(id).src = url;
}
function show_hide_tab(id, resetID){
	document.getElementById(id).style.display = ''
	document.getElementById(resetID).style.display = 'none'
}
function navigate_to(webpage, qs)
{
	location.href='default.aspx?s=' + webpage + '&' + qs;
	return true;
}
function nolink() {
	// simple do nothing
}