function changeNavBg(n) {
	if(document.getElementById(n).style.backgroundPosition == '0px 50%')
		document.getElementById(n).style.backgroundPosition = '-145px';
	else
		document.getElementById(n).style.backgroundPosition = '0px';
}
if(window.event + "" == "undefined") event = null;
function HM_f_PopUp(){return false};
function HM_f_PopDown(){return false};