function menu2(index) {
			if (navigator.userAgent.indexOf("MSIE") != -1) {
				if (index == 1) {
					t1.style.display = "";
					t2.style.display = "none";		
				t3.style.display = "none";
					
				} 
				
				
			    else if (index == 2) {
					t1.style.display = "none";
					t2.style.display = "";
					t3.style.display = "none";
					
					
			   }
			   else if (index == 3) {
					t1.style.display = "none";
					t2.style.display = "none"
					t3.style.display = "";
					
					
					
			   }
			 

		}}