function lightup(imageobject, opacity){
	if (navigator.appName.indexOf("Netscape")!=-1 && parseInt(navigator.appVersion)>=5){
		imageobject.style.MozOpacity = opacity/100;
	}else if (navigator.appName.indexOf("Microsoft")!= -1 && parseInt(navigator.appVersion)>=4){
		imageobject.filters.alpha.opacity = opacity;
	}
}

function lightDOWN(imageobject){
	if (navigator.appName.indexOf("Netscape")!=-1 && parseInt(navigator.appVersion)>=5){
		for(var i=50;i<=100;i++) setTimeout("document.getElementById('"+imageobject.id+"').style.MozOpacity = "+i+"/100;",(10*(i-50)));
	}else if (navigator.appName.indexOf("Microsoft")!= -1 && parseInt(navigator.appVersion)>=4){
		for(var i=50;i<=100;i++) setTimeout("document.getElementById('"+imageobject.id+"').filters.alpha.opacity = "+i+";",(10*(i-50)));
	}
}

function lightUP(imageobject){
	if (navigator.appName.indexOf("Netscape")!=-1 && parseInt(navigator.appVersion)>=5){
		for(var i=100;i>=50;i--) setTimeout("document.getElementById('"+imageobject.id+"').style.MozOpacity = "+i+"/100;",(10*(100-i)));
	}else if (navigator.appName.indexOf("Microsoft")!= -1 && parseInt(navigator.appVersion)>=4){
		for(var i=100;i>=50;i--) setTimeout("document.getElementById('"+imageobject.id+"').filters.alpha.opacity = "+i+";",(10*(100-i)));
	}
}