function checkIt(string)
		{
			var detect = navigator.userAgent.toLowerCase();
			place = detect.indexOf(string) + 1;
			thestring = string;
			return place;
		}
         function dammi_browser()
		 {
		   var detect = navigator.userAgent.toLowerCase();
		   var OS,browser,version,total,thestring;
		   if (checkIt('msie')) {return "block";} else {return "table";}
		 }
		 function display(img)
		 {
		    document.getElementById('alberi1').style.display="none";
			document.getElementById('pollini1').style.display="none";
			var obiettivo=dammi_browser();
			switch (img)
					{
					  case 'alberi1':
								 document.getElementById('nome').innerHTML="<b>ALBERI</b>";
			                     document.getElementById('alberi1').style.display=obiettivo;
					  break;
					  case 'pollini1':
								 document.getElementById('nome').innerHTML="<b>POLLINI</b>";
			                     document.getElementById('pollini1').style.display=obiettivo;
					  break;
					   
					   
					 }  
					 document.location.hash = 'nome';
		 }