function changeTab(tabNo) {
				t_tab1 = document.getElementById("navhome");
				t_tab2 = document.getElementById("navservices");
				t_tab3 = document.getElementById("navnewsletter");
				//t_tab4 = document.getElementById("navpressroom");
				t_tab5 = document.getElementById("navnoticeboard");
				t_tab6 = document.getElementById("navcontactus");
				
				t_info1 = document.getElementById("subnavHome");
				t_info2 = document.getElementById("subnavServices");
				t_info3 = document.getElementById("subnavNewsletters");				
				//t_info4 = document.getElementById("subnavPressRoom");
				t_info5 = document.getElementById("subnavNoticeBoard");				
				t_info6 = document.getElementById("subnavContactUs");
			
				if (tabNo==1) {
					t_tab1.className = "here";
					t_tab2.className = "normal";
					t_tab3.className = "normal";
					//t_tab4.className = "normal";
					t_tab5.className = "normal";
					t_tab6.className = "normal";
					
					t_info1.style.display = "block";
					t_info2.style.display = "none";
					t_info3.style.display = "none";
					//t_info4.style.display = "none";
					t_info5.style.display = "none";
					t_info6.style.display = "none";
				
				} else if (tabNo==2) {
					t_tab1.className = "normal";
					t_tab2.className = "here";
					t_tab3.className = "normal";
					//t_tab4.className = "normal";
					t_tab5.className = "normal";
					t_tab6.className = "normal";
					
					t_info1.style.display = "none";
					t_info2.style.display = "block";
					t_info3.style.display = "none";
					//t_info4.style.display = "none";	
					t_info5.style.display = "none";
					t_info6.style.display = "none";	
				
				} else if (tabNo==3) {
					t_tab1.className = "normal";
					t_tab2.className = "normal";
					t_tab3.className = "here";
					//t_tab4.className = "normal";
					t_tab5.className = "normal";
					t_tab6.className = "normal";
					
					t_info1.style.display = "none";
					t_info2.style.display = "none";
					t_info3.style.display = "block";
					//t_info4.style.display = "none";	
					t_info5.style.display = "none";
					t_info6.style.display = "none";	
				
				/*} else if (tabNo==4) {
					t_tab1.className = "normal";
					t_tab2.className = "normal";
					t_tab3.className = "normal";
					t_tab4.className = "here";
					t_tab5.className = "normal";
					t_tab6.className = "normal";
					
					t_info1.style.display = "none";
					t_info2.style.display = "none";
					t_info3.style.display = "none";
					t_info4.style.display = "block";	
					t_info5.style.display = "none";
					t_info6.style.display = "none";*/
				
				} else if (tabNo==5) {
					t_tab1.className = "normal";
					t_tab2.className = "normal";
					t_tab3.className = "normal";
					//t_tab4.className = "normal";
					t_tab5.className = "here";
					t_tab6.className = "normal";
					
					t_info1.style.display = "none";
					t_info2.style.display = "none";
					t_info3.style.display = "none";
					//t_info4.style.display = "none";
					t_info5.style.display = "block";
					t_info6.style.display = "none";
				
				} else if (tabNo==6) {
					t_tab1.className = "normal";
					t_tab2.className = "normal";
					t_tab3.className = "normal";
					//t_tab4.className = "normal";
					t_tab5.className = "normal";
					t_tab6.className = "here";
					
					t_info1.style.display = "none";
					t_info2.style.display = "none";
					t_info3.style.display = "none";
					//t_info4.style.display = "none";
					t_info5.style.display = "none";
					t_info6.style.display = "block";
				
				}
			}