function trim(str)
{
   return str.replace(/^\s*|\s*$/g,"");
}

function showSubMenu(menu)
{	
	document.getElementById("usersMenu").style.display='none';
	
	if(menu != null && menu != "" && document.getElementById(menu+"Menu"))
	{
		document.getElementById(menu+"Menu").style.display='block';		
	}
}

function setActiveTab(tab)
{
	if(tab && tab != '' && document.getElementById(tab+"Tab"))
	{
		document.getElementById(tab+"Tab").className='active';
		
		/*showSubMenu(tab);*/
	}
}

function setActiveSubMenu(menu)
{	
	if(menu && menu != '' && document.getElementById(menu))
	{
		document.getElementById(menu).className='active';
	}
}