function closeAll(){
	document.getElementById('home').style.display='none';
	document.getElementById('products').style.display='none';
	document.getElementById('industries').style.display='none';
	document.getElementById('lease').style.display='none';
	document.getElementById('information').style.display='none';
	document.getElementById('vendors').style.display='none';
	document.getElementById('inquire').style.display='none';	
	document.getElementById('careers').style.display='none';
	document.getElementById('homespan').className='';
	document.getElementById('productsspan').className='';
	document.getElementById('industriesspan').className='';
	document.getElementById('leasespan').className='';
	document.getElementById('informationspan').className='';
	document.getElementById('vendorsspan').className='';
	document.getElementById('inquirespan').className='';
	document.getElementById('careersspan').className='';
	}

function showDiv(id){
	closeAll();
	var newid = id + "span";	
	document.getElementById(id).style.display='block';
	document.getElementById(newid).className='on';	
	}