function randomHomeClass() {
	_obj = document.getElementById("body");
	 var rand_no = Math.random();
	 _class = _obj.className;
	 _rnd = Math.ceil(rand_no*3);
	 
	 //_rnd=1;
	 
	 _newClass = "home"+_rnd;
	 if (_newClass != _class)
	    _obj.className=_newClass;
	    
	  _homeImage = document.getElementById("home_image");
	 
	  if (_homeImage !=null) {
	  	
	  	if (_rnd == 1) {
	  		_homeImage.style.top="580px";
	  	} else if (_rnd == 2) {
	  		_homeImage.style.top="570px";
	  	}
	  	else if (_rnd == 3) {
	  		_homeImage.style.marginTop="660px";
	  	}
	  
	}
}

_active = false;
function menu_over(obj) {

	if (!_active) {
	_img = obj.getElementsByTagName("img")[0];
	_img.src = _img.src.replace(/_off\.gif/g,"_on.gif");
	
	_active = true;
	}
}

function menu_out(obj) {
		if (_active) {
		_img = obj.getElementsByTagName("img")[0];
		_img.src = _img.src.replace(/_on\.gif/g,"_off.gif");
		
		_active = false;
		}

}