function showMenu(x) {
	var tab = "tab"+x;
	var menu = "menu"+x;
	if(document.all) {
	
		// General
		tab261.style.visibility = "hidden";
		menu261.style.visibility = "hidden";

		// Help	
		tab3.style.visibility = "hidden";
		menu3.style.visibility = "hidden";

		// OpenAccess
		tab7.style.visibility = "hidden";
		menu7.style.visibility = "hidden";

		// Open Modeling
		tab63.style.visibility = "hidden";
		menu63.style.visibility = "hidden";
		
		// Low Power
		tab4.style.visibility = "hidden";
		menu4.style.visibility = "hidden";
	
		// Design for Manufacturability
		tab5.style.visibility = "hidden";
		menu5.style.visibility = "hidden";

		//Other
		tab6.style.visibility = "hidden";
		menu6.style.visibility = "hidden";
		
		// sub303.style.visibility = "hidden";
	
		//sub148.style.visibility = "hidden";

		//sub149.style.visibility = "hidden";

		//sub150.style.visibility = "hidden";

		//sub151.style.visibility = "hidden";

		//sub152.style.visibility = "hidden";
	
	if(document.all[tab]!=null) {
		document.all[tab].style.visibility = "visible";
		}
	if(document.all[menu]!=null) {
		document.all[menu].style.visibility = "visible";
		}
	document.all['CloserLayer'].style.visibility = "visible";
	} else if(document.getElementById) {
		// General
		document.getElementById('tab261').style.visibility = "hidden";
		document.getElementById('menu261').style.visibility = "hidden";

	
		document.getElementById('tab3').style.visibility = "hidden";
		document.getElementById('menu3').style.visibility = "hidden";

	
		document.getElementById('tab7').style.visibility = "hidden";
		document.getElementById('menu7').style.visibility = "hidden";
	
		document.getElementById('tab63').style.visibility = "hidden";
		document.getElementById('menu63').style.visibility = "hidden";

	
		document.getElementById('tab4').style.visibility = "hidden";
		document.getElementById('menu4').style.visibility = "hidden";
	
		document.getElementById('tab5').style.visibility = "hidden";
		document.getElementById('menu5').style.visibility = "hidden";

		document.getElementById('tab6').style.visibility = "hidden";
		document.getElementById('menu6').style.visibility = "hidden";

	
		//document.getElementById('sub303').style.visibility = "hidden";
	
		//document.getElementById('sub148').style.visibility = "hidden";

		//document.getElementById('sub149').style.visibility = "hidden";

		//document.getElementById('sub150').style.visibility = "hidden";

		//document.getElementById('sub151').style.visibility = "hidden";

		//document.getElementById('sub152').style.visibility = "hidden";

	if(document.getElementById(tab)!=null) {
		document.getElementById(tab).style.visibility = "visible";
		}
	if(document.getElementById(menu)!=null) {
		document.getElementById(menu).style.visibility = "visible";
		}
	document.getElementById('CloserLayer').style.visibility = "visible";
	}
}


function closeAll() {
	if(document.all) {
		// General
		tab261.style.visibility = "hidden";
		menu261.style.visibility = "hidden";
	
		tab3.style.visibility = "hidden";
		menu3.style.visibility = "hidden";
	
		tab7.style.visibility = "hidden";
		menu7.style.visibility = "hidden";
	
		tab63.style.visibility = "hidden";
		menu63.style.visibility = "hidden";
	
		tab4.style.visibility = "hidden";
		menu4.style.visibility = "hidden";
	
		tab5.style.visibility = "hidden";
		menu5.style.visibility = "hidden";

		tab6.style.visibility = "hidden";
		menu6.style.visibility = "hidden";
	
		//sub303.style.visibility = "hidden";
	
		//sub148.style.visibility = "hidden";

		//sub149.style.visibility = "hidden";

		//sub150.style.visibility = "hidden";

		//sub151.style.visibility = "hidden";

		//sub152.style.visibility = "hidden";
	
	document.all['CloserLayer'].style.visibility = "hidden";
	} else if(document.getElementById) {
		// General	
		document.getElementById('tab261').style.visibility = "hidden";
		document.getElementById('menu261').style.visibility = "hidden";

	
		document.getElementById('tab3').style.visibility = "hidden";
		document.getElementById('menu3').style.visibility = "hidden";
	
		document.getElementById('tab7').style.visibility = "hidden";
		document.getElementById('menu7').style.visibility = "hidden";

	
		document.getElementById('tab63').style.visibility = "hidden";
		document.getElementById('menu63').style.visibility = "hidden";

	
		document.getElementById('tab4').style.visibility = "hidden";
		document.getElementById('menu4').style.visibility = "hidden";
	
		document.getElementById('tab5').style.visibility = "hidden";
		document.getElementById('menu5').style.visibility = "hidden";

		document.getElementById('tab6').style.visibility = "hidden";
		document.getElementById('menu6').style.visibility = "hidden";
	
		//document.getElementById('sub303').style.visibility = "hidden";
	
		//document.getElementById('sub148').style.visibility = "hidden";

		//document.getElementById('sub149').style.visibility = "hidden";

		//document.getElementById('sub150').style.visibility = "hidden";

		//document.getElementById('sub151').style.visibility = "hidden";

		//document.getElementById('sub152').style.visibility = "hidden";

	document.getElementById('CloserLayer').style.visibility = "hidden";
	}
}

function showDate(x) {
	var date = "date"+x;
	var tempDate;
	if(document.all) {
		for(s=1; s<32; s++) {
		tempDate = "date" + s;
		if(document.all[tempDate]!=null) {
			document.all[tempDate].style.visibility = "hidden";
			}
		}
		document.all[date].style.visibility = "visible";
	} else if(document.getElementById) {
		for(s=1; s<32; s++) {
		tempDate = "date" + s;
		if(document.getElementById(tempDate)!=null) {
			document.getElementById(tempDate).style.visibility = "hidden";
			}
		}
		document.getElementById(date).style.visibility = "visible";
	}
}