browserName=navigator.appName;
browserVer=parseInt(navigator.appVersion);
if (browserVer >=3)	version="3";
else				version="2";
       
if (version =="3"){
uno_on=new Image();
uno_on.src="img/meteo_on.gif";
uno_off=new Image();
uno_off.src="img/meteo_off.gif";

due_on=new Image();
due_on.src="img/sport_on.gif";
due_off=new Image();
due_off.src="img/sport_off.gif";

tre_on=new Image();
tre_on.src="img/news_on.gif";
tre_off=new Image();
tre_off.src="img/news_off.gif";

quattro_on=new Image();
quattro_on.src="img/village_on.gif";
quattro_off=new Image();
quattro_off.src="img/village_off.gif";

cinque_on=new Image();
cinque_on.src="img/gallery_on.gif";
cinque_off=new Image();
cinque_off.src="img/gallery_off.gif";

sei_on=new Image();
sei_on.src="img/community_on.gif";
sei_off=new Image();
sei_off.src="img/community_off.gif";
}

function onbutton(imgName)
	{if (version=="3")
		{document[imgName].src=eval(imgName + "on.src");}
	}

function offbutton(imgName)
	{if (version=="3")
		{document[imgName].src=eval(imgName + "off.src");}
	}