function ShowMenu(strObj) {
	HideMenus();
	document.getElementById('topnav-'+strObj).style.display='block'
	document.getElementById('toptab-'+strObj).className='selected';
}

function HideMenus() {
	document.getElementById('topnav-1').style.display='none'
	document.getElementById('toptab-1').className='';
	
	document.getElementById('topnav-2').style.display='none'
	document.getElementById('toptab-2').className='';
	
	document.getElementById('topnav-3').style.display='none'
	document.getElementById('toptab-3').className='';
	
	document.getElementById('topnav-4').style.display='none'
	document.getElementById('toptab-4').className='';

	document.getElementById('topnav-5').style.display='none'
	document.getElementById('toptab-5').className='';
	
}